Tüm alıştırma soruları

A software development company has two engineering divisions: Cloud Infrastructure and Mobile Applications. The $45$ engineers in the Cloud Infrastructure division completed code reviews with an average duration of $25$ minutes per review, while the engineers in the Mobile Applications division completed code reviews with an average duration of $40$ minutes per review. If the overall average code review duration for all engineers across both divisions combined was $31$ minutes, how many engineers are in the Mobile Applications division?

A boutique hotel offers two types of rooms: Executive Suites and Deluxe Suites. During a convention weekend, booking $12$ Executive Suites and $18$ Deluxe Suites generated total revenue of $\$7{}800$. The following weekend, booking $15$ Executive Suites and $10$ Deluxe Suites generated total revenue of $\$7{}250$. If the nightly rate for each type of suite remained constant, what was the nightly rental rate, in dollars, of an Executive Suite?

Read the following passage snippet from a study on marine geochemistry:

"Although nineteenth-century geologists assumed that deep subseafloor basaltic crust was entirely devoid of metabolic activity, recent oceanographic drilling reveals that chemolithoautotrophic microbes thrive within subcrustal microfractures; notably, while these endolithic communities account for less than one percent of total marine biomass, their steady oxidation of ferrous iron within fluids sequestered from open ocean circulation buffers local seawater pH over millennial timescales—a stabilizing function previously attributed exclusively to the dissolution of surface carbonate sediments."

Which of the following inferences regarding surface carbonate sediment dissolution is most strictly supported by the passage?

An electric shuttle travels along a straight $240$-mile route from Facility A to Facility B. For the first $120$ miles of the journey, the shuttle travels at a constant average speed of $60$ miles per hour. For the remaining $120$ miles, due to traffic congestion, the shuttle travels at a constant average speed of $30$ miles per hour. What was the average speed of the electric shuttle, in miles per hour, for the entire $240$-mile trip?

Read the passage below carefully:

For decades, urban planners assumed that increasing population density inevitably degrades civic cohesion by fostering social anonymity. However, recent empirical studies of high-density housing developments in Seoul reveal that architectural configuration—specifically the integration of multi-tiered public courtyards—plays a far more decisive role in fostering community interactions than density itself. By comparing resident interaction frequencies across developments with identical unit densities but contrasting floor plans, researchers demonstrated that physical layout dictates social encounter rates. Consequently, municipal policy should shift away from density caps toward enforcing spatial connectivity mandates in high-density zoning ordinances.

Match each excerpt or claim from the passage (Left Column) to its exact structural role in the overall argument (Right Column).

Consider the following sentence from an article on paleoclimatology: "Although isotope ratio analysis of cave speleothems provides precise chronological records of regional precipitation shifts, it cannot determine the specific atmospheric circulation patterns that drove those shifts unless complemented by atmospheric circulation modeling."

True or False: Based on the sentence provided, isotope ratio analysis of cave speleothems alone cannot identify the specific atmospheric circulation patterns responsible for regional precipitation shifts.

Consider the following excerpt from a historical study of solar astronomy:

"Although mid-nineteenth-century astrophysicists initially posited that solar flares were localized atmospheric disturbances unique to the Sun's equator, Gustav Spörer’s systematic observations of sunspot migration demonstrated that these energetic eruptive events occur across a much wider range of heliocentric latitudes over the course of an eleven-year solar cycle."

Based on this excerpt, Spörer’s empirical findings directly challenged the idea that solar flares are confined solely to the equatorial region of the Sun.

A university research department must select a 4-member committee from a group of 6 biologists and 4 chemists. If the committee must contain at least 1 biologist and at least 1 chemist, how many different 4-member committees can be formed?

Consider the following statement from an academic text on dendroclimatology:

"Although twentieth-century paleoclimatologists routinely treated narrow growth rings in subfossilized European oak specimens as conclusive markers of regional summer droughts, recent isotope analyses indicate that such growth suppression occurred only when elevated spring rainfall was preceded by an unseasonably mild winter, thereby demonstrating that narrow ring width alone is insufficient to diagnose drought conditions."

Based on the statement above, which of the following can be logically inferred regarding narrow growth rings in subfossilized European oak specimens?

For decades, marine biologists accepted the traditional model of coral reef resilience, which posited that structural complexity alone dictated a reef ecosystem's capacity to recover from thermal stress events. According to this view, intricate three-dimensional architecture provides microhabitats that shelter keystone herbivores, thereby preventing algal overgrowth during post-bleaching recovery phases.

Recently, however, a group of ecosystem ecologists proposed an alternative hypothesis emphasizing functional redundancy among microbial communities rather than physical habitat architecture. Proponents of this microbial model argue that the rapid metabolic adaptation of endosymbiotic microalgae and associated bacterial taxa is the primary driver of host survival under elevated sea temperatures, rendering physical habitat complexity a secondary variable.

Most recently, a third perspective has emerged that seeks to synthesize these seemingly contradictory frameworks. Synthesists contend that both structural complexity and microbial diversity operate as interdependent nodes within a nested feedback loop: physical complexity stabilizes macro-herbivore populations that regulate macroalgal cover, which in turn preserves the microenvironmental conditions necessary for beneficial microbial consortia to thrive. Thus, according to this integrative model, attempting to isolate physical structure from microbial dynamics mischaracterizes the holistic mechanics of coral resilience.

Which of the following best describes the logical structure of the passage as a whole?

In the mid-nineteenth century, the rapid growth of manufacturing centers in Northern England triggered unprecedented municipal challenges regarding public hygiene and urban infrastructure. Traditional historiography long asserted that local civic authorities prioritized industrial output above all administrative concerns, leaving urban sanitation and worker housing strictly to private philanthropic initiatives. However, recent archival research into mid-Victorian municipal records reveals a far more complex regulatory landscape. Beginning in the late 1840s, several industrial boroughs established local health boards authorized to monitor drainage facilities and regulate housing density in expanding working-class districts. Although these early administrative bodies lacked robust legal mechanisms to impose financial penalties on violators, they nevertheless established key legislative precedents for state-sanctioned urban oversight.

Furthermore, historical evidence refutes the long-held assumption that factory owners uniformly opposed municipal interventions. Records from prominent textile manufacturing towns show that a significant cohort of factory owners actively petitioned local councils for centralized water supply systems. These industrialists recognized that rampant waterborne epidemics, particularly cholera and typhoid, caused severe absenteeism and diminished workplace productivity. Nevertheless, civic investment in public infrastructure remained fragmented until the national Public Health Act of 1875 established mandatory sanitary standards across all municipal districts.

According to the passage, some factory owners supported municipal investment in centralized water supply systems because they:

Read the passage below and match each paragraph with the statement that best describes its primary structural role in the overall passage.

Paragraph 1:
For decades, classical economic historians contended that the transition from water power to steam power during the British Industrial Revolution was driven primarily by energy cost differentials and absolute scarcity of suitable water sites. According to this traditional view, water wheels had reached their geographical and technological limits, forcing manufacturers to adopt coal-fired steam engines to expand production capacity.

Paragraph 2:
However, recent spatial econometric analyses challenge this resource-scarcity thesis by demonstrating that suitable water power sites remained underutilized throughout northern England well into the 1840s. Furthermore, per-horsepower energy costs for water wheels remained lower than those for steam engines until late in the nineteenth century. The rapid shift to steam power, these newer studies argue, stemmed not from physical constraints on energy supply, but from steam's organizational flexibility: steam engines permitted manufacturers to relocate factories to densely populated urban centers, thereby tapping into concentrated labor pools and reducing transport overheads.

Paragraph 3:
This reinterpretation does not merely resolve a historical anomaly regarding energy pricing; it fundamentally reshapes our understanding of early industrial urbanization. By illustrating that spatial organization and labor access outweighed direct energy costs in technological selection, the modern scholarship demonstrates that urban agglomeration was a primary catalyst—rather than a mere byproduct—of the Industrial Revolution's core technological shifts.

Which of the following correctly pairs each paragraph with its primary structural function?

Passage:
For decades, paleoclimatologists relied primarily on dendrochronology—the study of annual tree-ring growth patterns—to reconstruct terrestrial surface temperature variations over the past millennium. While tree-ring width series provide precise, annual temporal resolution, their proxy fidelity degrades significantly when calibrated for long-term millennial climate trends due to age-dependent biological growth trends that must be detrended, often obscuring multi-decadal fluctuations. Recently, researchers analyzing speleothem oxygen isotope ratios ($\delta^{18}\text{O}$) in cave mineral deposits have offered an alternative terrestrial archive. Unlike tree rings, speleothems grow continuously over millennia without biological detrending artifacts, making them superior indicators of century-scale temperature and moisture anomalies. However, speleothem growth rates are inherently irregular, introducing chronological uncertainties during radiometric dating. Rather than viewing speleothem data as a direct replacement for tree-ring records, contemporary paleoclimatologists advocate for an integrated multi-proxy framework. By employing high-resolution dendrochronology to pin exact calendar years onto broader speleothem-derived climate trends, researchers can resolve discrepancies between high-frequency annual variability and low-frequency climate signals.

Statement: The primary purpose of the passage is to advocate for combining dendrochronological records with speleothem isotopic data to resolve the proxy limitations of each individual method.

For decades, paleoclimatologists relied primarily on ice-core samples to reconstruct high-latitude atmospheric temperatures during the Pleistocene epoch. While ice cores provide exceptionally detailed records of greenhouse gas concentrations, their geographical concentration near the poles inherently limits their utility when modeling tropical climate dynamics. Recently, marine geochemists have advocated using magnesium-to-calcium ratios in fossilized planktonic foraminifera shells extracted from equatorial deep-sea sediments as a complementary proxy. Proponents contend that this geochemical technique yields precise sea-surface temperature reconstructions, thereby bridging a critical empirical gap in global climate models.

Initial trials utilizing foraminifera proxies have indeed produced promising data, revealing subtle sea-surface temperature fluctuations during past interglacial periods that previous global models failed to predict. However, enthusiastic proponents of the method often overlook significant methodological complications. Post-depositional dissolution of calcium carbonate in deep-sea sediments can selectively alter elemental ratios, potentially introducing warm-bias artifacts into the dataset. Furthermore, localized variations in seawater salinity exert a non-negligible influence on magnesium incorporation into foraminifera shells, complicating calibration against modern ocean temperatures.

These analytical hurdles do not render marine proxy data useless; rather, they underscore the necessity of pairing geochemical measurements with independent paleoceanographic indicators, such as alkenone paleothermetry. Rather than viewing foraminifera analysis as a standalone solution capable of replacing polar ice-core data, researchers should treat it as a valuable, albeit nuanced, component of a multi-proxy analytical framework.

Based on the passage, which of the following best characterizes the author's attitude toward the use of magnesium-to-calcium ratios in foraminifera shells as a paleoclimate proxy?

Read the passage below:

For decades, mid-twentieth-century historians attributed the sudden collapse of Eastern Mediterranean civilizations around 1200 BCE almost exclusively to external warfare, specifically devastations wrought by migratory maritime raiders known as the Sea Peoples. This cataclysmic invasion model framed the collapse as an abrupt, militarily induced rupture imposed on static, prosperous states.

However, late twentieth-century archaeologists challenged this monocausal narrative, proposing a 'systems collapse' model instead. Proponents of this view argue that Bronze Age palatial economies were inherently hyper-specialized and brittle. Rather than succumbing primarily to outside forces, these civilizations suffered from internal economic failure when localized droughts disrupted fragile agricultural supply lines, causing a cascading failure of governance and trade networks. In this framework, maritime raids were merely a symptom, not the root cause, of structural decay.

Recently, a third group of scholars has integrated paleoclimatological data with network theory to refine both perspectives. They contend that while climate anomalies triggered widespread crop failures, the true driver of collapse was neither invasion nor internal economic weakness alone, but the hyper-connectivity of the regional system itself. Small localized shocks were amplified across mutually dependent trade alliances, turning minor disruptions into systemic collapse. Thus, they reframe the event not as a sudden catastrophe or an internal decay, but as a systemic vulnerability inherent to early globalized trade networks.

Based on the passage above, match each perspective or structural element on the left with its corresponding role in the overall rhetorical organization of the passage on the right.

Passage:

In modern organizational theory, the adoption of open-book management—a policy of sharing complete financial and strategic metrics with all employees—was traditionally championed as a mechanism for aligning individual incentives with enterprise performance. Proponents hypothesized that radical financial transparency would cultivate psychological ownership, thereby enhancing frontline productivity and reducing operational agency costs. However, recent empirical evaluations of mid-sized manufacturing firms reveal a surprisingly counterproductive trend: comprehensive metric disclosure often correlates with increased employee risk aversion and tactical gaming of short-term Key Performance Indicators (KPIs).

This apparent paradox arises because raw financial data is rarely self-explanatory. Absent the specialized context held by senior executives, lower-level managers frequently misinterpret routine cyclical variances as indicators of existential instability. Consequently, rather than fostering long-term innovation, unmediated transparency incentivizes personnel to prioritize low-risk operational targets that preserve immediate reporting metrics. To mitigate this systemic distortion, some management theorists advocate replacing unfiltered data streams with 'curated transparency'—a framework wherein quantitative metrics are contextualized through structured narrative briefings before dissemination.

While critics contend that curation risks reintroducing executive information asymmetry and paternalism, preliminary field data suggest that contextual framing prevents metric-induced anxiety while retaining the trust benefits of open communication. Thus, organizational transparency should be conceptualized not as the raw exposure of data tables, but as a deliberate communicative process designed to balance informational clarity with contextual understanding.

Which of the following best states the primary purpose of the passage?

For decades, classical institutional economists maintained that the emergence of merchant guilds in late medieval Europe served primarily to enforce contracts and reduce transaction costs between long-distance traders and sovereign rulers. According to this efficiency-based framework, guilds institutionalized collective boycotts against rulers who violated trade agreements, thereby creating a credible commitment mechanism that enabled cross-border commerce to flourish in the absence of centralized international legal systems.

However, revisionist historians have increasingly challenged this view, arguing instead that merchant guilds functioned predominantly as rent-seeking cartels designed to restrict market entry and extract monopoly profits. Drawing on detailed archival analyses of municipal trade registries, these scholars demonstrate that guilds frequently leveraged their political influence with local authorities to suppress domestic competition and limit total trade volume, often to the detriment of broader economic welfare. By highlighting the exclusionary mechanisms employed by guilds—such as exorbitant initiation fees and arbitrary quota restrictions—revisionists depict guild institutions as barriers to, rather than facilitators of, regional market integration.

While the revisionist critique successfully exposes the self-serving aspects of guild governance, it tends to overlook the nuanced socio-institutional context in which medieval markets operated. Recent micro-historical research suggests that market restriction and contract enforcement were not mutually exclusive functions, but rather interdependent facets of a single risk-mitigation strategy. In volatile agrarian economies lacking formal judicial infrastructure, restricting guild membership served to preserve the shared social capital and mutual accountability necessary to enforce informal credit agreements among members. Thus, rather than invalidating the efficiency model entirely, recent scholarship synthesizes these competing perspectives, portraying guilds as dual-purpose mechanisms that balanced internal trust maintenance with external market regulation.

Which of the following best describes the structural function of the second paragraph in the context of the passage as a whole?

To reduce financial losses from fraudulent claims, a major art insurer instituted a rule requiring all paintings valued over $100,000 to undergo advanced spectroscopic pigment testing prior to policy issuance. The insurer reasoned that because fraudulent claims overwhelmingly involve recent forgeries crafted with modern synthetic pigments that spectroscopic testing easily identifies, this mandatory pre-issuance verification would drastically cut the firm's fraudulent payout losses. Which of the following, if true, most seriously weakens the insurer's reasoning?

Historically, historians of economics viewed the shift from mercantilism to classical free-market economics in late eighteenth-century Britain as a sudden, ideological rupture initiated almost single-handedly by Adam Smith’s Wealth of Nations. This traditional narrative posits that merchant-driven trade restrictions were swiftly repudiated in favor of laissez-faire principles once theoretical frameworks demonstrated the efficiency of unhindered markets.

However, recent archival investigations by revisionist scholars present a far more convoluted evolution. Rather than abandoning mercantilist practices overnight, British policymakers selectively adapted regulatory mechanisms to shield domestic manufacturing while championing free trade exclusively in sectors where domestic industries already held insurmountable competitive advantages. Thus, what earlier commentators categorized as a doctrinal transformation was, in practice, a pragmatic reallocation of state protectionism.

While revisionist historians rightly highlight the persistence of state intervention and expose the oversimplification of the traditional model, their framework is not without its own conceptual vulnerabilities. By reducing shifts in economic policy entirely to opportunistic mercantilist maneuvers, revisionists understate the genuine intellectual reorientation that occurred among parliamentary lawmakers. Although Smithian economic theory did not instantly dismantle tariffs, it fundamentally altered the rhetorical and moral terms of legislative debate. Therefore, while the transition was neither immediate nor purely ideological, portraying it as mere cynical mercantilism under a new guise obscures the subtle but decisive impact of emerging economic theory on policy formulation.

Which of the following best characterizes the author’s attitude toward the revisionist historians' interpretation of eighteenth-century British economic policy?

A technology company purchased a total of $35$ computers for its new office, consisting of standard desktop units costing $\$800$ each and high-performance workstation units costing $\$1,400$ each. If the total expenditure for all $35$ computers was $\$34,000$, how many standard desktop units did the company purchase?