All practice questions

A corporation cannot be listed on the Apex Exchange unless it has undergone a comprehensive environmental audit. Only corporations that employ a dedicated sustainability officer can undergo a comprehensive environmental audit. No corporation that primarily manufactures synthetic plastics employs a dedicated sustainability officer. Furthermore, any corporation that qualifies for a municipal tax abatement either primarily manufactures synthetic plastics or fails to generate over ten million dollars in annual revenue.

Based on the information provided, any corporation listed on the Apex Exchange that qualifies for a municipal tax abatement fails to generate over ten million dollars in annual revenue.

Ecologist: The municipal government's newly proposed desalination plant represents a shortsighted approach to water management. While it addresses the immediate freshwater shortage, the plant will discharge hypersaline brine directly into the coastal estuary. Therefore, the construction of this plant will inevitably trigger a catastrophic collapse of the local commercial fishery.

A deductive argument can be made formally valid by supplying unstated sufficient assumptions. Arrange the following statements to construct a valid deductive chain that fully justifies the ecologist's conclusion.

Instructions: Begin with the ecologist's explicit factual premise regarding the plant's operation. Then, sequence the unstated conditional assumptions such that the necessary condition of one directly triggers the sufficient condition of the next. Finally, end with the argument's main conclusion.

Political Commentator: Senator Harland has proposed a comprehensive tax reform bill that she argues will significantly reduce the tax burden on middle-class families. But we should not take her argument seriously. Senator Harland is a wealthy real estate developer, and her proposed legislation includes several complex provisions that would financially benefit the commercial real estate industry. It is obvious, then, that her tax reform bill will not actually reduce the tax burden on middle-class families.

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

Last year, the city government installed a 'smart' traffic light system designed to prioritize pedestrian crossings on its primary downtown commercial avenues. In the twelve months since the installation, retail businesses located along these avenues have reported a 30 percent increase in pedestrian foot traffic and a correspondingly significant rise in sales. A city planner concludes that the new traffic light system directly caused this increase in downtown commercial activity by making the avenues substantially more pedestrian-friendly.

Which of the following are necessary assumptions upon which the city planner's argument depends? Select all that apply.

Architect: We should construct the new civic center using engineered mass timber instead of traditional concrete and steel. Engineered timber is just as structurally sound as concrete and steel, but it has a significantly lower lifecycle carbon footprint. Therefore, by using engineered timber rather than concrete and steel, the city will reduce the overall environmental impact of the civic center's construction.

Which one of the following is an assumption on which the architect's argument depends?

Retail Analyst: Over the past five years, our chain of sporting goods stores has seen a 10 percent increase in profits each year. We have not changed our management team or our marketing strategy during this period, and we plan to keep both exactly the same for the next five years. Thus, our chain is guaranteed to see a 10 percent increase in profits each year for the next five years.

Which one of the following most accurately describes a flaw in the retail analyst's reasoning?

The debate over digital copyright law is characterized by three distinct viewpoints. Traditionalists argue that strict enforcement of traditional copyright laws in digital spaces is essential to ensure creators are financially motivated to produce new work. Without robust protection, they claim, the cultural economy will collapse. Conversely, open-source advocates maintain that rigid copyright protections fundamentally hinder technological innovation by restricting the free flow of information. They point to collaborative software development as proof that open access drives progress. Finally, some legal scholars propose a middle ground, arguing that the optimal solution requires a flexible licensing model that balances the financial needs of creators with the collaborative nature of the digital environment. This compromise, they suggest, is the only sustainable path forward.

Match each group's perspective to its explicitly stated main point based on the passage above.

Financial theorist: A financial market is robust only if it is capable of withstanding severe liquidity shocks and maintains transparent trading protocols. The novel commodities exchange, Aetherion, utilizes decentralized anonymous ledgers. Because this feature completely precludes the maintenance of transparent trading protocols, it follows that Aetherion's underlying economic model must be inherently unstable.

Which one of the following is an assumption that, if true, allows the financial theorist's conclusion to be properly drawn?

Public Health Official: Critics of our recent influenza vaccine campaign argue that the vaccine is ineffective. They point out that this year, the absolute number of vaccinated individuals who contracted influenza was 15 percent greater than the number of unvaccinated individuals who contracted the disease. However, these critics fail to recognize that due to our aggressive outreach efforts over the past year, the total number of vaccinated individuals in our district has tripled. Therefore, contrary to the critics' claims, the vaccine has indeed effectively reduced an individual's likelihood of contracting influenza compared to remaining unvaccinated.

Which of the following most accurately describes a flaw in the public health official's reasoning?

Review the following scenarios. Match each scenario describing an unexpected outcome to the abstract characterization of the apparent discrepancy it presents.

Evolutionary Biologist: Fossils of the ancient mammal *Thalassocnus* reveal unusually dense, heavy bones. Some researchers contend this extreme density evolved as a defensive adaptation against blunt-force impacts from terrestrial predators. However, maintaining such bones requires an immense caloric intake rarely justified by defensive needs alone. Because dense bones drastically decrease buoyancy—a vital advantage for foraging aquatic plants in turbulent coastal waters—this skeletal density likely evolved primarily to facilitate underwater grazing rather than as a defense mechanism.

Which one of the following, if true, provides the strongest additional support for the evolutionary biologist's argument?

Circular reasoning (begging the question) can manifest through various structural mechanisms. Match each argumentative snippet with the precise methodological description of the circular flaw it employs.

Researchers analyzing sediment cores from Lake Voltonia have identified a precipitous drop in the concentration of pollen from domesticated cereal crops dating precisely to the early 14th century. Historical archives from the surrounding region indicate that a severe, prolonged economic depression began during the exact same period. Based on this correlation, the researchers conclude that the economic depression must have triggered a mass abandonment of agricultural lands, which in turn caused the observed reduction in cereal crop pollen.

Which of the following is an assumption on which the researchers' argument depends?

Below are four distinct logical arguments (Left) and four pieces of evidence (Right). Match each argument to the single piece of evidence that most directly strengthens its conclusion by addressing its specific logical gap.

Legal Scholar: Any judicial system that prioritizes procedural efficiency over the substantive fairness of its outcomes will inevitably lose the public's trust. Furthermore, historical evidence demonstrates that without the public's trust, a judicial system cannot effectively enforce its rulings without resorting to widespread coercion. Therefore, the newly proposed municipal arbitration framework will fail to enforce its rulings without resorting to coercion.

Which one of the following, if assumed, enables the conclusion to be properly drawn?

Match each flawed argument with the abstract description of the equivocation (semantic shift) it commits.

Last year, the total number of traffic accidents in the city of Oakhaven increased by 15 percent compared to the previous year. However, the mayor of Oakhaven accurately claimed during a press conference that the city's traffic accident rate—measured as the number of accidents per 10,000 residents—actually decreased over the same period.

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

Art Historian: The recently discovered frescoes in the Catacombs of St. Callixtus represent the absolute pinnacle of early Christian artistry. While some contemporary critics contend that the later Byzantine mosaics display a more sophisticated use of color and geometry, their assessments are fundamentally misguided. Genuine artistic sophistication in early Christian works is defined exclusively by the stark, unadorned spiritual minimalism present in these very catacomb frescoes. Consequently, no other works from that era can be said to match the artistic mastery of these specific frescoes.

Which one of the following most accurately describes a flaw in the art historian's reasoning?

Match each of the following logical arguments to the abstract description that most accurately identifies its specific statistical reasoning flaw.

Human Resources Director: A decade ago, our firm implemented a mandatory weekly in-person brainstorming policy, which directly caused a significant improvement in our productivity and innovation metrics over the following year. As we restructure our operations next quarter, we will reinstate this exact same policy. Clearly, this action will once again lead to a similar surge in productivity and innovation.

Which one of the following most accurately describes a flaw in the reasoning of the Human Resources Director's argument?