Logical Reasoning
PrepTest 105 Section 1
Find the question you’re working on. Explore the reasoning, understand each answer, and learn from your mistakes.
Choose a question
Explanations for every question, find them by number or text.
- Q1:
Tennyson’s line of poetry "nature, red in tooth and …Identify the Conclusion
Tennyson’s line was not meant to reference Darwin’s theory of evolution.
- Q2:
Tennyson’s line of poetry "nature, red in tooth and …Role in Argument
Tennyson’s line was not meant to reference Darwin’s theory of evolution.
- Q3:
Space programs have recently suffered several setbacks …Strengthen
Large space projects should be abandoned in favor of several small projects.
- Q4:
In an experiment testing whether hyperactivity …Weaken
Diminished activity in the premotor cortex is one cause of hyperactivity.
- Q5:
Large discount chains can make a profit even while …Flawed Reasoning
Small retailers that compete with big discount chains must offer exceptional service to retain profitability.
- Q6:
We should do what will make others more virtuous …Flawed Reasoning
We should do what makes others more virtuous and avoid what makes them less virtuous.
- Q7:
Generic drugs contain exactly the same active ingredients …Strengthen
Generic drugs are just as effective as brand-name counterparts but cost less.
- Q8:
Economist: In the interaction between producers and consumers …Necessary Assumption
Consumers are always obligated to report product defects but producers are never obligated to reveal them.
- Q9:
All potatoes naturally contain solanine …Sufficient Assumption
Peeling wild potatoes makes them at least as safe to eat as unpeeled domesticated potatoes of the same size.
- Q10:
The consequences of surgical errors can be devastating …Flawed Reasoning
Surgery performed by anyone but a general surgeon involves highly undesirable risks.
- Q11:
Although the concept of free will is essential to …Role in Argument
The role of free will isn’t applied the same in determining moral responsibility across different situations.
- Q12:
Alice will volunteer to work on the hospital fund-raising …Parallel Reasoning
- Q13:
If an artist receives a public subsidy to support …Method of Reasoning
An artist who receives a public subsidy and later becomes financially successful is morally obligated to repay it.
- Q14:
If an artist receives a public subsidy to support …Principle – Justify
An artist who receives a public subsidy and later becomes financially successful is morally obligated to repay it.
- Q15:
The budget surplus should be used only to increase …Point At Issue
- Q16:
In a town containing a tourist attraction …Weaken (Exception)
Visitors are selling or sharing passes to the tourist attraction.
- Q17:
The difference between manners and morals …Most Strongly Supported
Etiquette rules don’t apply when you’re alone.
- Q18:
Sociologist: The intended function of news …Necessary Assumption
News cannot serve its intended function when it’s primarily entertainment.
- Q19:
Paleontologist: It is widely, but falsely, held that …Strengthen (Exception)
The belief that life began in the ocean and didn’t exist on land until half a billion years ago is false.
- Q20:
The nature of English literature reflects the …Most Strongly Supported
English literature reflects the rich and diverse vocabulary of the language.
- Q21:
- Q22:
Editorial: Supporters of the proposed law that would …Flawed Parallel Reasoning
Supporters of a bicycle helmet law are misguided.
- Q23:
Deep tillage is even more deleterious to the world’s …Necessary Assumption
Farmers who till deeply should incorporate no-till methods instead.
- Q24:
Editorial: Our society has a vested interest in maintaining …Principle – Justify
Governments should assume the cost of candidates’ campaigns.
- Q25:
- Q26:
Marion knows that the bridge on her usual route is closed ….Flawed Reasoning
Marion cannot avoid being late for work.
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