Examkin

Explaining Surprising Outcomes

22 questions

All types22Multiple choice12True / False4Matching6
Question 1Question →

To reduce the time checkout clerks spend bagging groceries, a regional supermarket chain replaced its standard flimsy plastic bags with thicker, reusable paper bags that stand upright on their own. Management expected that the self-standing nature of the new bags would allow clerks to pack items much faster. However, in the months since the introduction of the new bags, the average time it takes a clerk to pack a customer's groceries has increased by 20 percent.

Which of the following, if true, most helps to resolve the apparent discrepancy?

Show answer & explanation

Answer: The new paper bags have a significantly smaller capacity than the old plastic bags, requiring clerks to use a greater number of bags per order and spend time carefully arranging items to maximize space.

Answer

The statement that the new paper bags have a significantly smaller capacity, requiring clerks to use more bags per order and carefully arrange items to fit, resolves the discrepancy.
This statement perfectly reconciles the two conflicting facts. Even though the bags stand upright (which management thought would save time), their smaller capacity forces clerks to use more bags per order and spend time arranging items like a puzzle. This new time cost outweighs the time saved from the bags standing upright, explaining the 20 percent increase in average bagging time.

Step-by-Step Solution

1
Identify the paradox in the stimulus.
Management introduced self-standing bags expected to speed up bagging, but average bagging time per customer actually increased by 20 percent.
Understanding the conflicting facts is required to find an explanation that reconciles them.
2
Determine the goal.
Find a statement providing a new piece of information that explains why self-standing bags would take longer to pack than the old plastic bags.
A valid resolution must show how both original premises can coexist.
3
Evaluate the answer choices against the goal.
Identify the choice that presents a time-consuming disadvantage of the new bags during the checkout process.
Only a new, offsetting time cost can explain why the expected speed increase resulted in an actual speed decrease.

Key Concept

Explaining Surprising Outcomes
Estimated Time:1m 30s
Question 2Question →

To reduce its environmental footprint, a corporate office replaced all manual light switches with motion-sensor switches designed to turn lights off whenever a room is unoccupied. The building's occupancy rate, operating hours, and total number of light fixtures remained completely unchanged. Yet, one year after the installation, the building's total electricity consumption specifically for lighting had increased by 15% compared to the previous year.

Which of the following, if true, most helps to resolve the apparent paradox?

Show answer & explanation

Answer: The motion sensors automatically activate the lights at their maximum wattage upon detecting movement, whereas employees using the manual switches typically kept their office lights heavily dimmed.

Answer

The statement that the motion sensors automatically activate the lights at their maximum wattage, whereas employees previously kept their lights heavily dimmed.
This option successfully resolves the discrepancy by introducing a new variable: light intensity (wattage). Even if the motion sensors reduce the total amount of time the lights are left on, automatically activating them at their maximum wattage uses significantly more electricity per minute than the heavily dimmed lights used previously. This higher rate of continuous consumption easily accounts for the 15% overall increase in electricity usage.

Step-by-Step Solution

1
Analyze the apparent discrepancy presented in the stimulus.
The company installed motion sensors to turn off unoccupied lights, aiming to save energy. All other factors (occupancy, hours, fixtures) remained constant, yet lighting electricity consumption increased by 15%.
Understanding the exact parameters of the paradox is necessary to identify what kind of new information can bridge the gap.
2
Determine the requirements for a successful resolution.
The correct answer must provide a reason why the new sensors cause more electricity to be drawn when they are on, outweighing the energy saved when they turn lights off.
Since the time the lights are on has presumably decreased (or at least not increased), the rate of energy consumption while on must have increased to result in a net gain.
3
Evaluate the options against these requirements.
The option regarding maximum wattage provides the exact mechanism needed: higher intensity (wattage) uses more electricity than dimmed lights, fully explaining the absolute increase in consumption.
This is the only option that addresses the actual rate of electricity consumption rather than cost, outside correlations, or irrelevant percentages.

Key Concept

Resolving a Paradox by Identifying Counteracting Variables
Question 3Question →

In an effort to restore the declining population of native silver trout in Lake Mistic, conservationists completely removed a non-native predatory fish species, the spotted pike, which was known to feed on juvenile silver trout. Two years after the complete removal of the spotted pike, the population of juvenile silver trout has actually declined significantly below its previous levels, despite water quality and other environmental factors remaining optimal and unchanged.

Which of the following, if true, most helps to resolve the apparent discrepancy?

Show answer & explanation

Answer: The spotted pike's primary food source was the redfin perch, a rapidly reproducing species whose diet consists almost entirely of the exact same aquatic insects that juvenile silver trout rely on for survival.

Answer

The statement explaining that spotted pike primarily ate redfin perch, which compete directly with juvenile silver trout for food.
The correct answer resolves the paradox by introducing a secondary causal mechanism. By establishing that the spotted pike primarily preyed on redfin perch, and that redfin perch compete directly with juvenile silver trout for the exact same food source, it explains how removing the pike allowed the perch population to grow unchecked. The surging perch population then depleted the food supply, starving the juvenile trout.

Step-by-Step Solution

1
Analyze the stimulus to identify the apparent paradox.
The paradox is that removing a known predator of the silver trout resulted in a significant decline in the juvenile silver trout population, rather than the expected increase.
Understanding the conflicting facts is required before a resolution can be found.
2
Determine what characteristics a correct resolution must have.
The correct answer must provide a new piece of information that explains how the removal of the spotted pike actively caused or allowed a situation that harmed the juvenile silver trout, without contradicting the premise that the environment remained unchanged.
A valid resolution must bridge the two conflicting facts logically.
3
Evaluate the options against the required characteristics.
The correct option reveals an ecological chain reaction: removing the apex predator (pike) removed the check on a competitor species (perch), which then starved the juvenile trout by depleting their shared food source.
This indirect causal mechanism perfectly explains the surprising outcome while remaining consistent with all given premises.

Key Concept

Resolving a paradox by identifying an indirect causal mechanism or third variable that bridges seemingly contradictory premises.
Estimated Time:2m 0s
Question 4Question →

Match each of the following paradoxical outcomes with the explanatory mechanism that most logically resolves the apparent discrepancy.

Click a left item, then click its matching right item

Items

A national park doubled the number of waste bins on its trails to eliminate littering, but the amount of trash left on the ground subsequently increased.
A university library vastly expanded its digital e-book collection to reduce the time students wait for research materials, but the average wait time for library resources increased.
A corporate office transitioned to a four-day workweek to reduce employee burnout, but the company's internal surveys reported a significant increase in stress levels.
A major airline introduced a highly fuel-efficient fleet of airplanes, yet the company's total annual jet fuel consumption rose to an all-time high.
A popular restaurant removed its least ordered dishes to streamline the menu and increase table turnover rate, but the average time a party spent at a table lengthened.

Matches

Show answer & explanation

Answer

Match the paradoxical situations to their specific underlying causes: the park litter paradox with scavenging wildlife, the library wait time paradox with induced demand from new users, the shortened workweek paradox with increased schedule intensity, the airline fuel paradox with the expansion of new long-haul routes, and the restaurant menu paradox with increased patron-server interaction.
Each correct pair logically reconciles the surprising outcome by introducing a new, valid factor that explains why an intended action produced the exact opposite effect in its specific context.

Step-by-Step Solution

1
Analyze each paradoxical outcome to identify the two conflicting facts.
Identified discrepancies such as efficiency upgrades leading to more resource use, or time-saving measures leading to longer durations.
Understanding the precise nature of the paradox is necessary to find an explanation that logically bridges the gap.
2
Evaluate each explanatory mechanism to determine how it resolves a specific conflict.
Matched mechanisms that introduce new, previously unstated factors to their corresponding paradoxes.
A valid resolution must account for both seemingly incompatible facts simultaneously without contradicting either premise.

Key Concept

Identifying the Apparent Discrepancy and Bridging Conflicting Premises
Estimated Time:2m 0s
Question 5Question →

In an effort to combat a rising rate of a severe tick-borne illness, the public health department of Woodlands County heavily subsidized a new, highly effective chemical tick repellent. The repellent was widely adopted and applied correctly by nearly all outdoor recreationists in the county. However, public health records indicate that in the year following the subsidy's introduction, the infection rate of the tick-borne illness among outdoor recreationists in Woodlands County increased significantly.

Which of the following, if true, most helps to resolve the apparent discrepancy?

Show answer & explanation

Answer: Confident in the new repellent's efficacy, outdoor recreationists in the county shifted from hiking exclusively on cleared paths to routinely navigating dense, untrailed brush where tick density is extraordinarily high.

Answer

The statement indicating that recreationists, confident in the repellent, began navigating dense, untrailed brush where tick density is extraordinarily high.
The correct answer successfully resolves the paradox by demonstrating how the introduction of the protective measure directly caused a behavioral shift. Because the recreationists felt fully protected by the highly effective repellent, they began exposing themselves to overwhelmingly higher numbers of ticks in untrailed brush. This massive increase in exposure overwhelmed the preventative benefits of the repellent, perfectly explaining how a highly effective safety measure could ultimately result in a higher infection rate.

Step-by-Step Solution

1
Analyze the stimulus to pinpoint the exact nature of the apparent discrepancy.
Fact 1: A highly effective tick repellent was widely adopted and correctly applied. Fact 2: The infection rate of a tick-borne illness among users increased significantly in the following year.
Understanding the precise conflict between the premises is required before evaluating which statement can logically reconcile them.
2
Determine the necessary characteristics of a correct resolution.
The correct answer must bridge the two facts by explaining how an effective preventative measure could actively coexist with, or even lead to, a higher rate of the illness it is meant to prevent.
A valid resolution in LSAT Logical Reasoning must actively reconcile the conflicting facts rather than just explaining one fact while ignoring the other.
3
Evaluate the options against the required characteristics, watching for common trap answers.
The option describing a shift to high-risk environments shows that the repellent caused a behavioral change (risk compensation), leading to massively increased exposure that overpowered the repellent's efficacy.
This is the only statement that logically connects the widespread use of the effective repellent directly to the surprising increase in the infection rate.

Key Concept

Resolving Paradoxes through Behavioral Feedback Mechanisms (Risk Compensation)
Estimated Time:2m 0s
Question 6Question →

Analyze each of the following scenarios. Match each paradoxical situation (apparent discrepancy) with the explanatory statement that logically resolves the paradox.

Click a left item, then click its matching right item

Items

Despite a manufacturing plant instituting a 25% increase in the hourly wage rate specifically to address acute labor shortages by incentivizing employees to work more shifts, the total number of hours worked by the plant's workforce dropped substantially in the subsequent quarter.
A telecommunications company deployed an advanced automated routing system that instantly resolves all basic customer inquiries, yet the average duration that customers spend waiting on hold to speak with human representatives has more than doubled.
After a municipal public health initiative successfully persuaded a large demographic to substitute their standard cigarettes with lower-tar, lower-nicotine alternatives, the incidence of smoking-related cardiovascular distress within that demographic actually surged.
A prestigious fashion house significantly reduced the retail price of its least popular handbag model in an attempt to stimulate sales volume, but immediately following the price reduction, consumer purchases of that specific model ceased entirely.

Matches

Show answer & explanation

Answer

The correct pairings reconcile the contradictory premises by introducing new factual context: target income thresholds explain the drop in labor hours, complex-case concentration explains the extended customer service wait times, compensatory inhalation behavior explains the negative health outcomes, and status-symbol dynamics explain the retail failure.
Each correct resolution provides a novel piece of factual information that allows both original premises of the paradox to be simultaneously true. By shifting the context—whether through changing the composition of tasks, revealing hidden consumer motives, identifying target income thresholds, or demonstrating behavioral compensation—the apparent contradictions are logically resolved.

Step-by-Step Solution

1
Analyze each scenario to identify the two conflicting premises.
Identified the expected outcome of an action versus the surprising actual outcome (e.g., higher wages leading to fewer hours worked).
Resolving a paradox requires precisely understanding the gap between expectation and reality.
2
Evaluate the explanatory statements to find a mechanism that allows both premises of the paradox to be true simultaneously.
Identified mechanisms such as compensatory behavior, changing task composition, and Veblen-good pricing dynamics.
A valid resolution must actively bridge the gap without contradicting either of the original facts provided in the scenario.
3
Match each identified mechanism to its corresponding specific paradox.
Successfully paired the four independent domains (labor economics, technological adoption, public health, consumer psychology) with their respective logical resolutions.
Ensures structural and topical alignment between the surprising outcome and the explanation.

Key Concept

Explaining Surprising Outcomes
Question 7Question →

To improve the durability of its flagship rugged smartphone, the Trekker, a telecommunications company analyzed thousands of broken units that customers had sent to the company's centralized repair facility over the past year. The engineers found that 85 percent of the damaged Trekkers had shattered outer screens, while only 5 percent had damaged internal processors. Based on this data, the engineering team proposed heavily reinforcing the screens on the next generation of the Trekker. However, the chief product architect rejected this proposal, arguing that if the goal is to maximize the average operational lifespan of the Trekker in the field, the company must instead prioritize reinforcing the internal processors.

Which of the following, if true, most helps to resolve the apparent discrepancy between the repair data and the architect's recommendation?

Show answer & explanation

Answer: When a Trekker's internal processor is damaged, the device typically becomes immediately inoperable and is discarded by the user, whereas units with shattered screens usually remain functional enough to justify the effort of returning them for repair.

Answer

The statement explaining that devices with damaged processors are typically discarded, while those with shattered screens are returned for repair.
The correct answer provides a mechanism (survivorship bias) that perfectly reconciles the repair data with the architect's recommendation. If a damaged processor causes the user to instantly throw the phone away, those phones never make it to the repair facility to be counted. Conversely, a shattered screen leaves the phone functional enough to be mailed in. Therefore, the repair data vastly underestimates processor failures in the field. The architect realizes that to extend the phone's life, they must protect the component that causes total device death, not the one that merely results in a repair request.

Step-by-Step Solution

1
Identify the apparent discrepancy or paradox in the stimulus.
Repair data shows screens break 85% of the time and processors only 5%. Yet, the architect insists that reinforcing processors is the key to maximizing the phone's lifespan.
Resolving a paradox requires clearly defining the two conflicting facts that need to be reconciled.
2
Analyze the nature of the evidence provided.
The data only comes from 'units that customers had sent to the company's centralized repair facility'.
In LSAT Logical Reasoning, the source and scope of data are critical. If data only represents a specific subset (returned phones), it may not accurately reflect the whole picture (all broken phones in the field).
3
Evaluate the options to find a factual statement that explains how both sides of the paradox can be true simultaneously.
The correct answer must explain why processor damage is actually a massive threat to the phone's lifespan despite barely showing up in the repair facility's data.
A valid resolution must bridge the gap without contradicting either of the established facts.
4
Select the option that introduces a selection bias into the data pool.
The correct option reveals that phones with broken processors are thrown away (thus never counted in the 5%), while those with broken screens survive long enough to be mailed in (inflating the 85%).
This perfectly explains why the repair data is skewed and why the architect is correct to focus on the fatal flaw (the processor) to extend actual field lifespan.

Key Concept

Selection Bias and Representativeness in Paradoxes
Question 8Question →

A new allergy medication, AllerClear, contains the exact same active compound as the leading brand, AllerSustain. However, AllerClear's unique formulation causes it to be metabolized and completely eliminated from the human body twice as rapidly as AllerSustain. Since the adverse side effects of this active compound are known to result from its presence in the bloodstream, researchers predicted that allergy sufferers would experience far fewer side effects with AllerClear. Yet, in a multi-month clinical trial where participants were instructed to take their assigned medication whenever their allergy symptoms flared up, those using AllerClear reported a significantly higher incidence of side effects than those using AllerSustain.

Which one of the following, if true, most helps to resolve the apparent discrepancy?

Show answer & explanation

Answer: Due to its rapid elimination, AllerClear provides only brief relief, causing participants to take the medication so frequently that their total cumulative exposure to the active compound far exceeds that of AllerSustain users.

Answer

The statement explaining that rapid elimination leads to brief relief, which causes participants to take the medication more frequently and results in a higher total cumulative exposure.
The discrepancy arises because a medication designed to leave the body quickly (which was expected to reduce side effects) actually resulted in a higher incidence of side effects. The correct answer resolves this by introducing an unintended behavioral shift: because the drug leaves the body quickly, its therapeutic effects wear off rapidly. This prompts patients to take the medication much more frequently. Consequently, their total cumulative exposure to the active compound ends up being significantly higher than that of patients taking the slower-acting drug, perfectly explaining the higher incidence of side effects.

Step-by-Step Solution

1
Identify the two conflicting facts presented in the stimulus.
Fact 1: AllerClear is eliminated twice as fast as AllerSustain, leading researchers to expect fewer side effects. Fact 2: Trial participants using AllerClear experienced a significantly higher rate of side effects.
Isolating the exact nature of the discrepancy is required before evaluating how to resolve it.
2
Determine the underlying assumption that makes the outcome surprising.
The researchers assumed that a faster elimination rate per dose would automatically result in less overall exposure to the active compound.
Identifying the gap in the researchers' reasoning helps predict the mechanism of a valid resolution.
3
Evaluate the options for a statement that bridges the gap without contradicting the premises.
The correct option reveals an unintended behavioral consequence: the fast elimination necessitates more frequent dosing. This frequency completely overrides the benefit of fast elimination, leading to higher total exposure.
A valid resolution must actively reconcile the two conflicting facts, showing how the expected cause (fast elimination) led to the unexpected outcome (more side effects).

Key Concept

Resolving paradoxes involving unintended behavioral consequences and the distinction between rate of elimination and total absolute volume.
Estimated Time:2m 0s
Question 9Question →

Last year, the city of Oakhaven banned the sale of sugary beverages in containers larger than 16 ounces, intending to reduce overall sugar consumption among its residents. However, a recent public health study reveals that in the year since the ban was implemented, the total volume of sugary beverages purchased and consumed by Oakhaven residents has increased significantly.

Which of the following, if true, most helps to resolve the apparent discrepancy described above?

Show answer & explanation

Answer: Consumers in Oakhaven typically respond to the new size restriction by purchasing two or more 16-ounce sugary beverages at a time, resulting in a higher total volume consumed per person.

Answer

The statement explaining that consumers respond to the restriction by purchasing multiple 16-ounce beverages at a time.
The correct answer successfully resolves the paradox by introducing an unintended consequence of the policy. If consumers feel restricted by the 16-ounce limit and compensate by purchasing two or more drinks per transaction, their individual consumption (32 or more ounces) easily surpasses the previous single large container. This perfectly explains how a ban on large sizes can lead to a significant increase in total volume consumed, allowing both original facts to be true.

Step-by-Step Solution

1
Identify the two apparently conflicting facts in the stimulus.
Fact 1: Oakhaven banned sugary drinks over 16 ounces to reduce consumption. Fact 2: The total volume of sugary drinks consumed has increased significantly since the ban.
Understanding the exact nature of the discrepancy is necessary to find a statement that bridges the gap.
2
Determine what is required to resolve the paradox.
The correct answer must explain how banning large sizes directly or indirectly caused residents to consume a higher total volume of sugary drinks.
A valid resolution must allow both facts to be true simultaneously without contradicting either.
3
Evaluate the answer choices against the required resolution.
The correct option provides an unintended behavioral shift (buying multiple smaller drinks) that directly explains how smaller individual sizes lead to greater total volume.
This is the only option that accounts for the increase in consumption while accepting the reality of the ban.

Key Concept

Explaining Surprising Outcomes
Question 10Question →

Match each paradoxical situation with the statement that best resolves the apparent discrepancy.

Click a left item, then click its matching right item

Items

A city added lanes to its busiest highway to ease congestion, but traffic jams on that highway immediately worsened.
A luxury perfume brand cut its prices in half, but the number of bottles sold actually decreased.
A farm switched to a cheaper type of cattle feed to save money, yet its total daily feeding costs increased.

Matches

Show answer & explanation

Answer

The highway expansion paradox is resolved by the shift of commuters from trains to cars. The luxury perfume paradox is resolved by the loss of the product's exclusive image. The cheaper feed paradox is resolved by the need to consume significantly more feed.
Each correct match provides a piece of new information that actively bridges the gap between an action and its surprising result. For the highway, it introduces a behavioral shift. For the perfume, it introduces the concept of prestige pricing. For the farm, it introduces the relationship between nutritional density and required volume.

Step-by-Step Solution

1
Analyze the highway paradox.
The paradox is that increasing road space worsened traffic. The matching resolution shows how more space led to even more cars.
Resolving a paradox requires finding a new fact that makes both original facts compatible.
2
Analyze the luxury perfume paradox.
The paradox is that lowering prices reduced sales. The matching resolution shows that the price cut removed the primary reason people bought the product.
We must explain why a normal economic principle failed in this specific scenario.
3
Analyze the farm feed paradox.
The paradox is that cheaper feed raised total costs. The matching resolution shows that the farm had to buy vastly more of the new feed.
Total cost depends on both price per unit and quantity used; changing one can offset the other.

Key Concept

Explaining Surprising Outcomes
Question 11Question →

A city recently installed "smart" traffic lights at all major intersections, which use real-time data to optimize traffic flow and reduce vehicle idling time. Surprisingly, in the six months since the installation of these smart lights, the average commute time during rush hour in the city has increased by 15 percent.

The fact that the new smart traffic lights have virtually eliminated traffic accidents, which were previously the leading cause of rush-hour delays in the city, helps to resolve this apparent discrepancy.

Show answer & explanation

Answer: False

Answer

False, the statement does not help to resolve the apparent discrepancy; it actually deepens the paradox.
The statement is false because the provided fact deepens the mystery rather than explaining it. If the new traffic lights eliminated the leading cause of rush-hour delays, we would expect average commute times to decrease drastically. The fact that commute times instead increased by 15 percent becomes even more contradictory and surprising in light of this new information.

Step-by-Step Solution

1
Identify the core paradox in the stimulus.
The paradox is that new technology designed to optimize traffic flow and reduce idling has coincided with a surprising 15 percent increase in rush-hour commute times.
Understanding the exact nature of the discrepancy is required before evaluating any potential resolution.
2
Analyze what the provided statement contributes to the scenario.
The statement reveals that the new smart lights successfully eliminated traffic accidents, which used to be the primary cause of delays in the city.
We must determine how this new piece of information interacts with the existing, conflicting facts.
3
Evaluate if the new information explains the surprising outcome.
It does the exact opposite. If the leading cause of delays was eliminated, commute times should have dropped significantly. The 15 percent increase is now much harder to understand.
A valid resolution must provide a mechanism showing how the two seemingly contradictory facts can coexist. A statement that deepens the mystery is a trap and does not resolve the discrepancy.

Key Concept

Eliminating Paradox-Deepening Traps
Question 12Question →

Match each paradoxical situation on the left with the statement on the right that most logically resolves the apparent discrepancy.

Click a left item, then click its matching right item

Items

A hospital facing a severe shortage of qualified nurses recently decreased the starting salaries for its newly hired nurses.
Traffic congestion in a city's downtown area worsened after the introduction of a popular free public bicycle-sharing program.
The release of an expensive premium version of a productivity app caused a sudden, massive surge in sales of the previously stagnant basic version.
Despite a massive increase in residential solar panel installations following a new subsidy, the total residential electricity drawn from the city's main grid did not decrease.

Matches

Show answer & explanation

Answer

The hospital paradox is resolved by the tuition program; the traffic paradox by the lane removal and user demographics; the app sales paradox by the shifted perception of value; and the solar panel paradox by the increase in overall energy consumption.
Each correct match provides a new piece of information that bridges the gap between the two seemingly contradictory facts presented in the paradox. By addressing alternative compensation, capacity reduction, psychological price anchoring, and behavioral rebound effects, the correct statements fully resolve their respective discrepancies.

Step-by-Step Solution

1
Analyze the hospital labor shortage paradox.
The discrepancy is lowering wages during a shortage. The resolution must provide an alternative incentive that outweighs the lower pay, which matches the tuition coverage program.
To resolve a labor paradox, we need a factor that increases the job's attractiveness independent of the base salary.
2
Analyze the traffic and bicycle program paradox.
The discrepancy is more alternative transport leading to worse traffic. The resolution must show cars were not reduced while road capacity was, which matches the lane removal and pedestrian usage statement.
A paradox involving worsened conditions despite an apparent solution usually means the solution actively harmed the existing infrastructure or didn't target the actual source of the problem.
3
Analyze the app sales paradox.
The discrepancy is a new expensive product boosting sales of an old stagnant one. The resolution must explain a change in consumer behavior toward the old product, matching the shift in value perception.
When a new product impacts the sales of an existing product, it typically alters the comparative landscape or consumer psychology.
4
Analyze the solar panel paradox.
The discrepancy is increased solar capacity not reducing grid reliance. The resolution must explain an offset in the savings, matching the behavioral shift of using high-consumption appliances.
A paradox where increased efficiency or capacity fails to yield expected reductions often points to a simultaneous increase in usage (a rebound effect).

Key Concept

Identifying the Apparent Discrepancy and bridging the gap with new, logically sufficient information that allows both original facts to coexist.
Question 13Question →

Scenario: A local government introduced a generous financial subsidy for homeowners who install advanced solar panels, aiming to decrease the region's overall residential reliance on the municipal power grid. Within a year, 40 percent of households installed the subsidized panels, which generate significantly more electricity than a typical household consumes during daylight hours. Surprisingly, utility records show that the total amount of electricity drawn from the municipal grid by residential neighborhoods actually increased during that same year.

Statement: The apparent discrepancy is logically resolved by the fact that the solar panels only generate electricity during daylight hours, meaning that participating households must still draw all of their electricity from the municipal grid during the evening and night.

Show answer & explanation

Answer: False

Answer

False
The statement fails to resolve the paradox because it relies on a static fact to explain a contradictory dynamic change. Before the solar panels were installed, households relied on the grid during both the day and the night. After installation, daytime grid reliance was eliminated for nearly half the households while their nighttime reliance remained unchanged. Mathematically, this must result in a net decrease in total grid usage. Pointing out that nighttime usage still exists merely explains why total usage didn't drop to zero; it completely fails to explain the surprising outcome that total grid usage actually increased.

Step-by-Step Solution

1
Identify the core discrepancy in the scenario.
The paradox is that solar panels eliminated daytime grid reliance for 40% of households, yet the overall residential grid usage increased.
A clear grasp of the conflicting facts is necessary to evaluate potential resolutions.
2
Analyze the proposed explanatory statement.
The statement claims that households still rely on the grid at night because the panels only work during the day.
We must determine exactly what causal mechanism the statement provides.
3
Evaluate whether the statement reconciles the conflicting facts.
It does not. Prior to the panels, households used the grid both day and night. Eliminating daytime usage while maintaining nighttime usage results in a net decrease. The statement cannot explain an increase.
A valid resolution must actively account for the unexpected direction of the change (the increase), not merely explain why the decrease was not 100%.

Key Concept

Identifying explanations that fail to account for relative changes and merely state static facts.
Question 14Question →

A county introduced a new telemedicine hotline designed to divert patients with minor ailments away from the county's emergency rooms. Records show that the hotline successfully resolved over 10,000 minor ailment cases last year that would otherwise have resulted in emergency room visits. Nevertheless, the total number of patients visiting the county's emergency rooms for minor ailments was 20 percent higher last year than the year before the hotline was introduced. Which one of the following, if true, most helps to resolve the apparent discrepancy described above?

Show answer & explanation

Answer: The aggressive marketing campaign for the telemedicine hotline convinced many residents who previously ignored minor ailments to seek medical attention, and a large number of these individuals bypassed the hotline and went directly to the emergency room.

Answer

The statement explaining that the hotline's marketing campaign caused a massive influx of new care-seekers, many of whom went straight to the emergency room.
The apparent discrepancy is that a new hotline successfully diverted 10,000 minor ailment cases from the emergency room, yet the total number of ER visits for minor ailments still increased by 20 percent. The correct answer resolves this by introducing a new factor: the hotline's marketing campaign caused a net increase in the total number of people seeking medical care for minor ailments. Because a large number of these newly motivated individuals went directly to the ER instead of using the hotline, the ER experienced a net increase in visits, even though the hotline successfully diverted 10,000 other cases.

Step-by-Step Solution

1
Identify the two apparently conflicting facts in the stimulus.
Fact 1: The hotline diverted 10,000 minor ailment cases from the ER. Fact 2: Overall ER visits for minor ailments increased by 20 percent.
Resolving a paradox requires a precise understanding of the two sides that seem to contradict each other.
2
Determine what the correct answer must achieve.
The correct answer must allow both facts to be simultaneously true. It must explain how the ER gained more patients than it lost to the hotline.
An effective resolution bridges the gap without denying either of the original premises.
3
Evaluate the options against the required criteria.
The correct option shows that the same initiative that diverted 10,000 patients also generated a new, larger wave of care-seekers who went directly to the ER.
This introduces a causal mechanism (marketing expanding the total pool of patients) that perfectly accounts for the concurrent success of the hotline and the increase in ER traffic.

Key Concept

Explaining Surprising Outcomes by introducing a confounding variable or unintended consequence that expands the overall scope of the situation.
Question 15Question →

To improve efficiency, a national bank implemented an automated chatbot on its website to handle basic customer service inquiries, such as password resets and balance checks. Prior to the chatbot's implementation, these routine inquiries accounted for the vast majority of customer service interactions. One year after the chatbot's deployment, a performance review revealed that the average time a human customer service representative spends on a single customer interaction has increased by nearly 60 percent, even though the representatives are using the exact same software tools and handling procedures as before.

Which of the following, if true, most helps to resolve the apparent discrepancy in the information above?

Show answer & explanation

Answer: By successfully diverting the shortest and simplest inquiries, the chatbot has altered the composition of the representatives' workload so that they now almost exclusively handle complex, time-consuming problems.

Answer

The statement indicating that the chatbot diverted the shortest inquiries, leaving representatives to handle only complex, time-consuming problems.
The paradox arises because a tool designed for efficiency seems to have decreased it by extending call times. However, the metric in question is an 'average'. If the chatbot successfully handles all the short, routine interactions, those quick calls are removed from the human representatives' pool of tasks. The remaining calls reaching the humans are solely the complex ones that naturally require more time. This mathematical shift in the composition of the workload perfectly explains why the average time per human interaction spiked, completely resolving the discrepancy.

Step-by-Step Solution

1
Identify the apparent discrepancy.
The bank introduced a chatbot to handle basic inquiries to improve efficiency, yet the average time a human spends on a single customer interaction increased by 60 percent.
Understanding the conflicting premises is the foundation of resolving a paradox.
2
Analyze the nature of the metric being measured.
The surprising outcome is an increase in an average (time per interaction), not a total amount (total hours worked).
Changes in averages can occur strictly through changes in the composition of the group being measured.
3
Evaluate the impact of the chatbot on the composition of the workload.
The chatbot handles 'basic customer service inquiries' which previously made up the 'vast majority' of interactions. These are inherently short tasks.
Connecting the chatbot's function to the specific metric is required to find a causal link.
4
Synthesize to predict the resolution.
If all the short calls are removed from the representatives' workload, only the long, complex calls remain. Averaging only the longest calls will result in a much higher average time per call, even if efficiency is unchanged.
This logical deduction directly anticipates the correct answer choice.
5
Select the option that matches this logical mechanism.
The correct option explicitly states that the workload composition shifted toward complex, time-consuming problems.
This is the only choice that actively resolves the apparent contradiction between the premises.

Key Concept

Explaining Surprising Outcomes (Shifting Averages)
Estimated Time:2m 0s
Question 16Question →

City officials recently mandated that all newly constructed residential buildings be equipped with ultra-low-flow showerheads, which release 30 percent less water per minute than standard showerheads. The mandate was intended to reduce municipal water consumption. However, recent utility data reveals a surprising outcome: the average daily volume of water used specifically for showering per resident in these new buildings is 15 percent higher than in older buildings equipped with standard showerheads.

The following statement successfully resolves this apparent discrepancy: Residents in the newly constructed buildings tend to have larger households, meaning there are significantly more people taking showers each day compared to households in older buildings.

Show answer & explanation

Answer: False

Answer

False. The provided statement does not resolve the apparent discrepancy.
The correct evaluation is False. The proposed statement commits a scope shift flaw, confusing total volume with per capita (per resident) volume. While larger households would increase the total amount of water used by an entire household, it does not explain why the average water used per individual resident has increased. To successfully resolve this specific paradox, a statement must explain why an individual person is using more water for showering despite the reduced flow rate—for instance, if residents were taking significantly longer showers because of the uncomfortably low water pressure.

Step-by-Step Solution

1
Analyze the apparent discrepancy presented in the stimulus.
The paradox involves a conflict between more efficient showerheads (which use 30% less water per minute) and an unexpected increase in water usage specifically for showering per resident (which is 15% higher).
Identifying the precise components and modifiers of the paradox is the first step in logically evaluating any proposed resolution.
2
Evaluate the scope of the proposed resolution statement.
The statement proposes that the new buildings have 'larger households' with 'more people taking showers each day'.
We must determine if this new information logically connects the use of efficient showerheads to the higher per-resident usage.
3
Compare the metric in the statement to the metric in the discrepancy.
The discrepancy is measured strictly 'per resident', but the statement explains a potential increase in 'total household' usage.
A valid resolution must match the terms of the discrepancy. An increase in the number of users does not mathematically explain an increase in the average amount of water used by each individual user.

Key Concept

Scope Shift (Per Capita vs. Absolute Numbers)
Question 17Question →

Read the scenario and evaluate the statement that follows.

Scenario: In 2025, Omnicorp upgraded its flagship manufacturing plant with a state-of-the-art automated workflow. This upgrade immediately increased the average number of units produced per hour by each assembly worker by 50%. Omnicorp did not lay off any assembly workers, and the total number of hours each worker spent actively assembling units per year remained exactly the same as the previous year. Furthermore, the market price of the units remained constant, and consumer demand was high enough that every unit produced was sold. Management confidently projected a massive increase in annual revenue. However, at the end of the fiscal year, the plant’s total revenue generated from the sale of these units had actually decreased by 15% compared to the previous year.

Statement: The apparent discrepancy is logically resolved if it is true that the new automated machinery is so complex that the factory must completely halt all assembly operations for three full days every week to run diagnostic calibrations, thereby reducing the plant's active production schedule from seven days a week to only four days a week.

Show answer & explanation

Answer: False

Answer

The statement is FALSE because it fails to resolve the apparent discrepancy.
The statement is FALSE. The stimulus provides a closed system of variables: total revenue is a product of workforce size, annual hours worked, hourly efficiency, and unit price. The stimulus explicitly holds workforce size, annual hours, and price constant, while increasing efficiency by 50%. This mathematically guarantees a 50% increase in revenue. The candidate statement suggests the factory lost three days of operation per week. However, because the stimulus already established that the total annual hours worked per employee did not change, the reduction in operating days merely means the identical number of labor hours were completed in fewer days. The total output remains unaffected, meaning the statement completely fails to explain the 15% revenue decrease.

Step-by-Step Solution

1
Identify the two contradictory facts in the stimulus that create the paradox.
Fact 1: Worker efficiency increased by 50%, with absolutely no change to workforce size, annual hours worked per employee, or unit price. Fact 2: Total annual revenue decreased by 15%.
Understanding the exact parameters of the discrepancy is required before evaluating any potential resolution.
2
Determine the mathematical relationship established by the premises.
Because workers, annual hours, and price remained constant while hourly output increased by 50%, the total revenue is mathematically locked into a 50% increase.
This establishes the logical hurdle that any correct resolution must overcome.
3
Evaluate the candidate statement to see if it explains how the revenue could drop despite the constraints.
The statement indicates the factory operates fewer days per week. However, since the stimulus explicitly states annual labor hours remained the same, the reduction in operating days does not affect total production volume.
A valid resolution must account for all premises. A statement that contradicts or ignores a locked premise is not a valid resolution.
4
Conclude whether the statement resolves the paradox.
The statement fails to explain the 15% revenue drop and leaves the paradox entirely unresolved.
Since the mathematical constraints still force a 50% increase, the statement provides no explanatory mechanism for the decrease.

Key Concept

Parameter Tracking and Scope Constraints
Estimated Time:2m 0s
Question 18Question →

Following a severe regional drought, a state government offered generous subsidies to farmers who switched to planting a newly developed, drought-resistant variety of wheat. This new variety requires exactly half as much irrigation water per acre as traditional wheat. Within a year, over 80%80\% of the region's farmers had switched to the new variety. Yet, surprisingly, the total amount of irrigation water used for agricultural purposes in the region increased significantly during that year.

Which of the following, if true, most helps to resolve the apparent discrepancy?

Show answer & explanation

Answer: The lower operating costs resulting from the new wheat variety enabled farmers to profitably irrigate and cultivate thousands of acres of marginal land that had previously been left fallow.

Answer

The statement explaining that lower operating costs allowed farmers to cultivate thousands of acres of previously fallow land.
The correct answer resolves the paradox by demonstrating that while the rate of water use per acre decreased, the absolute number of acres being irrigated increased massively. Because the crops became much cheaper to grow, farmers used their savings to plant on thousands of additional, previously unfarmed acres. The sheer volume of new land being watered offset the per-acre water savings, leading to a net increase in total agricultural water consumption.

Step-by-Step Solution

1
Identify the apparent discrepancy in the stimulus.
The water required per acre dropped by half for most farmers, yet the total amount of agricultural water used in the region increased.
Understanding the core contradiction is required before evaluating how to resolve it.
2
Analyze the mathematical relationship underlying the facts.
Total Water = (Water per Acre) × (Total Acres). Since Water per Acre decreased, the only way Total Water could increase is if Total Acres increased significantly.
Deconstructing a total quantity into a rate and an absolute number highlights the missing variable.
3
Evaluate the answer choices for a statement that addresses this missing variable.
The correct option reveals that farmers expanded their farming operations by cultivating thousands of previously unused acres.
This introduces the exact structural mechanism needed to overcome the per-acre efficiency and drive up total consumption.

Key Concept

Explaining Surprising Outcomes by distinguishing between a rate (water per acre) and an absolute quantity (total water used).
Question 19Question →

Analyze the four distinct scenarios below. For each scenario, two apparently incompatible facts are presented. Identify the corresponding underlying mechanism that successfully reconciles the contradictory information in each case without violating either given premise.

Click a left item, then click its matching right item

Items

Conservationists introduce a specialized biological agent to cull an invasive herbivore species that is decimating local flora, but the overall population of the invasive herbivore subsequently surges.
A manufacturing sector implements a widespread four-day workweek without reducing employee compensation in an effort to improve morale, yet overall employee turnover rates significantly increase.
A municipal health department offers substantial cash incentives to citizens who successfully complete a supervised weight-loss program, but the average baseline weight of the targeted demographic increases over the year.
A corporation fully transitions its support division to an advanced automated system capable of resolving standard inquiries in seconds, yet the volume of unresolved, escalated complaints skyrockets.

Matches

Show answer & explanation

Answer

Match the environmental scenario with the elimination of the indigenous predator; the labor economics scenario with unchanged production quotas causing burnout; the public health scenario with participants deliberately gaming the baseline measurements; and the technological adoption scenario with the influx of nuanced grievances.
Each correct pairing introduces a mechanism that serves as a logical bridge. Eliminating an apex predator explains pest surges; extreme work intensification explains the turnover; perverse financial incentives explain the weight gain; and shifting user behavior explains the technological failure.

Step-by-Step Solution

1
Analyze the environmental science paradox
Identify that a mechanism must explain why introducing an anti-pest agent helps the pest multiply.
To match with the indigenous predator mechanism, proving the new agent destroyed a vital pre-existing ecological constraint.
2
Analyze the labor economics paradox
Identify that a mechanism must explain how working fewer days for the same pay leads to employees quitting.
To match with the condensed schedule mechanism, showing that the intensity of the work increased disproportionately to the time saved.
3
Analyze the public health policy paradox
Identify that a mechanism must explain how paying people to lose weight causes average weights to rise.
To match with the behavioral mechanism of citizens artificially inflating their starting weight to secure larger cash payouts.
4
Analyze the technological adoption paradox
Identify that a mechanism must explain how a faster, capable system produces more failures.
To match with the mechanism demonstrating that the system's existence changed the nature and complexity of the inputs it received.

Key Concept

Resolving apparent discrepancies by introducing new, compatible facts that bridge the logical gap between conflicting premises without relying on outside assumptions.
Estimated Time:2m 30s
Question 20Question →

Analyze the four paradoxical scenarios below. Match each unexpected outcome with the explanatory premise that most logically resolves the apparent discrepancy without contradicting the established facts.

Click a left item, then click its matching right item

Items

Labor Policy: A corporate law firm strictly capped the weekly hours junior associates could work, explicitly aiming to reduce burnout. One year later, reported burnout levels among these associates had severely increased.
Consumer Market: A luxury brand slashed prices on its core product line by 40% to attract middle-income buyers. While unit purchases by middle-income buyers surged exponentially, total overall revenue for the product line dropped.
Ecological Conservation: Officials banned the hunting of a predatory bird to protect it. Ten years later, the population of an endangered frog—the bird's primary prey—had inexplicably tripled in size.
Energy Efficiency: A city subsidized the universal installation of highly efficient smart thermostats. Despite flawless operation in 90% of homes, the city's total residential winter electricity usage rose.

Matches

Show answer & explanation

Answer

Labor Policy pairs with the unchanged casework volume. Consumer Market pairs with the alienated wealthy clientele. Ecological Conservation pairs with the territorial bird deterring snakes. Energy Efficiency pairs with homeowners increasing baseline temperatures.
Each correct match provides a new piece of information that bridges the gap between the initial action and the surprising result without contradicting the premises. The labor resolution shows how time limits exacerbate workload stress. The market resolution explains the revenue drop through the loss of high-margin legacy customers. The ecology resolution introduces a trophic cascade where the predator suppresses a worse threat. The energy resolution demonstrates a behavioral shift (rebound effect) that outpaces the technological efficiency gains.

Step-by-Step Solution

1
Analyze the Labor Policy discrepancy.
Identify that reducing hours only reduces stress if workload decreases proportionally; finding the premise that workload remained identical explains the increased pacing stress.
To resolve a policy paradox, one must look for unintended operational consequences of the restriction.
2
Analyze the Consumer Market discrepancy.
Identify that increased unit sales alongside decreased total revenue requires a massive loss in another buyer segment; the departure of the status-conscious original clientele provides this mathematical offset.
Resolving a proportional paradox requires accounting for absolute numbers and hidden cohort shifts.
3
Analyze the Ecological Conservation discrepancy.
Identify that protecting a predator logically decreases its prey unless a confounding variable exists; the predator acting as a shield against a worse egg-eating threat perfectly bridges this gap.
Biological paradoxes usually rely on unstated third-party interactions (trophic cascades) within the ecosystem.
4
Analyze the Energy Efficiency discrepancy.
Identify that efficient devices only save energy if usage habits remain static; the premise showing users actively increased their heating demands explains the total usage spike.
Technological paradoxes often hinge on psychological or behavioral shifts induced by the new technology itself.

Key Concept

Identifying missing premises that reconcile two seemingly incompatible facts by introducing secondary mechanisms, unintended behavioral shifts, or confounding variables.
Page 1 / 2Next
Explaining Surprising Outcomes Practice Questions — LSAT | Examkin