All practice questions

Consider the following argument:

Tech Analyst: Working in the office clearly makes InnovateCorp's employees more productive than working remotely. After all, the company's overall productivity increased by 15% last year, which is the exact same year they abandoned their fully remote policy and mandated that all employees work from the office four days a week.

Statement: To logically draw this conclusion, the analyst must assume that InnovateCorp did not also deploy a highly efficient new workflow software last year that drastically reduced the time required to complete routine tasks.

Over the last six months, Apex Delivery Company replaced its manual sorting facility with a new automated system that processes packages 50% faster. Surprisingly, despite this significant improvement in sorting speed, the company's average delivery time per package has increased during this same period.

Statement: The apparent paradox described above would be deepened if it were discovered that Apex recently hired a large fleet of new delivery drivers and optimized its delivery routes, significantly reducing the transit time from the sorting facility to the customer.

Historically, Western legal systems have strictly limited the concept of "legal personhood"—the capacity to possess rights and responsibilities—to human beings and corporations. Recently, however, a novel paradigm has emerged in environmental jurisprudence, wherein natural entities such as rivers and forests have been legally recognized as persons. Critics argue that such designations are confusing and primarily performative, doing little to alter the material realities of environmental degradation. But this view is fundamentally misguided. While critics often dismiss the extension of legal personhood to natural entities as a purely symbolic gesture, this legal innovation in fact functions as a crucial pragmatic mechanism, enabling ecosystems to seek direct judicial redress for ecological harm. By possessing independent legal standing, a river can now be represented in court by appointed guardians to sue polluters directly, bypassing the traditionally arduous requirement of proving that environmental damage explicitly caused quantifiable harm to human property or health.

Which one of the following most accurately expresses the central thesis of the passage?

Match each of the following short passage excerpts to the statement that most accurately expresses its implicit main point.

Organizational Researcher: A recent study analyzed the productivity of software development teams at several major technology firms. The study found that teams utilizing 'OpenSpace'—a novel, unstructured collaborative software environment—shipped on average 20 percent more product updates per quarter than teams using traditional, highly structured project management software. Clearly, adopting OpenSpace inherently increases a team's productivity by fostering spontaneous collaboration.

Which one of the following, if true, most seriously weakens the organizational researcher's argument?

Historically, the English common law doctrine of riparian rights—which granted water use strictly to those who owned land adjacent to a waterway—governed water allocation in the United States. This system, while functional in the humid climates of the eastern states, proved disastrously inadequate for the arid conditions of the American West. In response to these geographical realities, a novel legal framework known as the doctrine of prior appropriation emerged during the mid-nineteenth century. Based on the principle of "first in time, first in right," this doctrine allowed individuals to divert water from its natural course for beneficial use, regardless of land ownership.

For decades, legal historians have romantically characterized the doctrine of prior appropriation as a spontaneous, egalitarian invention of independent pioneer miners who devised grassroots rules to fairly share a scarce resource. According to this traditional view, the doctrine was a triumph of democratic frontier pragmatism over rigid, elitist common law. However, this idealized narrative fundamentally misconstrues the doctrine's origins. In reality, the legal architecture of prior appropriation was deliberately engineered and codified primarily by heavily capitalized corporate mining syndicates to secure monopolies over vast water networks and protect their industrial investments.

The evidence for this corporate orchestration is abundant, albeit long overlooked. While small-scale miners initially established rudimentary rules, it was the massive hydraulic mining companies that subsequently lobbied territorial legislatures and courts to formalize prior appropriation into binding statute. These corporations required absolute certainty of water rights before committing to the immense costs of constructing extensive flumes and dams. By championing a system where water rights could be severed from land and sold as independent commodities, these syndicates ensured that water would inevitably flow toward concentrated capital, thereby fundamentally transforming a vital public resource into an instrument of corporate consolidation.

Which one of the following most accurately expresses the main point of the passage?

Review the provided statements from four different individuals. Each statement contains exactly one distinct logical reasoning error. Pair each speaker's argument with the abstract description that correctly characterizes its fundamental flaw.

Art Conservator: We must decide whether to apply the newly developed Xylol treatment to the decaying municipal mural. Applying the treatment will permanently alter the texture of the original paint. However, if we do not apply the treatment, the mural will crumble completely within five years, meaning future generations will be unable to view it. Since ensuring that future generations can view the mural is more important than preserving the original texture of the paint, the city ought to apply the treatment.

Which one of the following principles, if valid, most helps to justify the art conservator's reasoning?

Consider the following scenario often found in Logical Reasoning questions asking to resolve an apparent discrepancy.

Premise A: Last year, the city of Oakhaven banned heavy commercial trucks from driving through the downtown district in order to reduce road wear and tear.
Premise B: Over the following year, the total amount of severe pavement damage on downtown roads increased by $30\%$.

Match each candidate explanation below to the exact logical role it plays in relation to this apparent discrepancy.

During the late Bronze Age, the city-state of Olaria experienced a massive, decade-long drought that decimated its local agricultural output, which was heavily dependent on rainfall. Historical records confirm a severe shortage of domestically grown grain during this time. Yet, archaeological excavations of Olarian households from this period reveal that the average citizen consumed significantly more grain than in the agriculturally prosperous decades preceding the drought.

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

For generations, political scientists have invoked the 1648 Peace of Westphalia as the definitive bedrock of modern international relations, traditionally arguing that the treaties birthed the modern system of inviolable state sovereignty. In this orthodox view, Westphalia established a categorical prohibition against external interference in a state's domestic affairs, effectively granting monarchs absolute authority within their territorial borders. Consequently, contemporary legal scholars often frame the late-twentieth-century rise of international human rights law—which permits intervention in cases of severe domestic abuse—as a radical rupture with a rigid Westphalian tradition.

However, recent historical analysis reveals that this conventional narrative relies on a fundamental misreading of the actual treaties. The Westphalian agreements contained numerous provisions that explicitly guaranteed the religious rights of minorities within sovereign territories, authorizing signatory states to intervene if a sovereign violated these protections. These mechanisms were not mere diplomatic window-dressing but were actively invoked in the decades following the settlement. Therefore, the prevailing consensus requires revision: rather than inaugurating an era of absolute non-intervention, the Westphalian settlement established a legal framework in which sovereign legitimacy was intrinsically conditioned upon adherence to specific cross-border obligations, prefiguring rather than precluding modern interventionist doctrines. While it is true that Westphalia formalized territorial boundaries in ways previously unseen, equating this with absolute internal autonomy ignores the intricate system of mutual accountability the treaties actually codified.

Which of the following most accurately expresses the main point of the passage?

Read the following passage:

(1) For much of the twentieth century, academic historians largely dismissed oral traditions as unreliable sources for reconstructing the past, favoring written documents as the only objective records. (2) This skepticism was rooted in the belief that oral narratives are inherently malleable, subject to memory failures, and inevitably distorted by contemporary political agendas. (3) Consequently, the histories of societies without extensive written records were often marginalized or told exclusively from the perspective of literate outside observers. (4) In recent decades, however, the methodological landscape of historiography has shifted significantly. (5) Historians now recognize that while oral traditions require rigorous corroboration, they provide vital access to the internal perspectives and cultural paradigms of non-literate societies that written colonial records fundamentally lack. (6) By employing comparative linguistic analysis and cross-referencing oral accounts with archaeological evidence, scholars have demonstrated that oral histories often preserve remarkably accurate records of historical events.

Which sentence explicitly states the author's main point in the passage? Provide the sentence number only.

Every individual component used in the assembly of the X-7 prototype spacecraft is light enough to be easily lifted by a single technician. Therefore, the fully assembled X-7 prototype spacecraft is light enough to be easily lifted by a single technician.

Which one of the following arguments exhibits a flawed pattern of reasoning most similar to that exhibited by the argument above?

A financial institution recently implemented a restrictive automated screening protocol in its high-frequency algorithmic trading division, aiming to limit capital risk. Following this implementation, the total volume of trades executed daily by the division decreased by 15 percent. Additionally, financial audits confirm that the average profit generated per successful trade has remained entirely unchanged compared to the period preceding the new protocol. Nevertheless, the division’s total daily profit derived from high-frequency trading has increased by 20 percent since the protocol took effect.

Evaluate whether the following statement is true or false:

The assertion that 'the average profit generated per successful trade has remained entirely unchanged' and the assertion that 'the division’s total daily profit derived from high-frequency trading has increased by 20 percent' together constitute a genuine logical discrepancy.

Sociologist: Only societies that possess a formalized system of property rights are capable of developing a complex market economy. Nomadic cultures inherently lack a formalized system of property rights, as their traditional lifestyle prevents them from claiming permanent ownership of specific land tracts. Therefore, it is impossible for nomadic cultures to cultivate highly specialized artisan classes.

The sociologist's argument relies on assuming which one of the following?

Macroeconomist: A country's overall economic resilience is determined by the financial behavior of its institutions. During the recent fiscal quarter, every single commercial bank operating within the nation implemented highly conservative lending practices, successfully minimizing their individual institutional risk. Because every individual bank in the system has achieved this secure posture, the national banking system as a whole is now completely insulated from systemic financial crises.

The reasoning in the macroeconomist's argument is most vulnerable to criticism on the grounds that the argument does which of the following?

Policy Analyst: A thriving local economy fundamentally depends upon a robust public transportation network. If a municipality fails to maintain reliable bus and commuter rail services, local businesses will inevitably struggle to attract both consumers and a qualified workforce. Over the past decade, the municipality of Oakhaven has allocated unprecedented funding toward expanding and upgrading its public transit infrastructure, resulting in the most reliable and expansive network in the region. Consequently, Oakhaven is guaranteed to experience a prolonged era of significant economic growth and a thriving local economy.

The reasoning in the policy analyst's argument is most vulnerable to criticism on the grounds that the argument:

Review the excerpts below from various public and academic discussions. Determine the primary reasoning error in each excerpt and pair it with the corresponding abstract description of that logical flaw.

The city of Oakhaven recently implemented a strict ban on all commercial wood-burning ovens in restaurants in order to reduce particulate matter pollution (PM2.5) in the downtown area. However, six months after the ban was fully enforced, the average daily PM2.5 levels in downtown Oakhaven have actually increased significantly compared to the same period last year.

Which of the following statements, if true, help to resolve the apparent discrepancy described above? Select all that apply.

Below are four independent scenarios in which an individual arrives at a specific conclusion based on a set of factual premises. For each scenario, select the broad normative or operational principle that, if assumed to be valid, would logically guarantee the conclusion drawn.