Logical Reasoning
PrepTest 120 Section 4
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:
Big-budget movies often gross two or three times what…Paradox
The gross revenues of big budget movies are 2-3 times higher than their production or marketing costs.
- Q2:
Dr. Theresa Pagano, a biologist, has found that the checkerspot…Strengthen – Exception
The northward shift of climate zones accounts for the northward shift of butterflies.
- Q3:
Professor: The best users of a language are its great authors…Most Strongly Supported
Great authors are the most skilled at their languages, and also the most likely to step outside the bounds of ordinary usage.
- Q4:
The purpose of the physical sciences is to predict the order…Identify the Conclusion
Even successful predictions of human behavior do not provide an understanding of it.
- Q5:
Sickles found at one archaeological site had scratched blades…Weaken
Sickles at the first site were used to harvest grain, while those at the second weren't.
- Q6:
Pain perception depends only partly on physiology…Identify the Conclusion
Pain perception only depends partly on physiology.
- Q7:
If cold fusion worked, it would provide almost limitless…Paradox – Exception
- Q8:
Everyone likes repertory theatre. Actors like it because…Strengthen
More theaters should switch to repertory theater.
- Q9:
Writer: I collaborated with another writer on my last book…Principle – Strengthen
The author should collaborate with another writer on their next book (any other writer).
- Q10:
Researcher: All defects in short-term memory are caused by…Flawed Reasoning
All learning defects in children are caused by a malfunctioning hippocampus.
- Q11:
- Q12:
Novelist: Any author who thinks a sentence is ungrammatical…Flawed Reasoning
Grammar books are useless as reference sources for authors.
- Q13:
Britain is now rabies free. Nevertheless, Britain's strict…Method of Reasoning
The policy cannot control the spread of rabies by wild bats.
- Q14:
Franklin: The only clue I have as to the identity of the practical…Flawed Reasoning
The joker is apparently someone other than Miller.
- Q15:
People who have doctorates in the liberal arts are interested…Sufficient Assumption
Businesses rarely hire people who have doctorates in liberal arts.
- Q16:
- Q17:
People who have never been asked to do more than they can do…Flawed Parallel Reasoning
Alex has never been pushed to do all he can.
- Q18:
It has been a staple of drama to feature an innocent young…Most Helps to Explain
Historians think that plays with a young protagonist eager to make a mark on the world do not accurately reflect the societies they were written in.
- Q19:
Fishing columnist: When an independent research firm…Flawed Reasoning – Exception
Anyone fishing for trout will get the best results with Benton baits.
- Q20:
Investment banker: Democracies require free-market capitalist…Necessary Assumption
Those who bemoan the anticapitalistic measures in question are being hasty.
- Q21:
Administrator: Because revenue fell by 15 percent this year…Flawed Reasoning
We must reduce salaries.
- Q22:
Repressors – people who unconsciously inhibit their display of…Necessary Assumption
Inhibiting displays of emotion causes a sharp rise in heart rate.
- Q23:
A television manufacturing plant has a total of 1,000 workers…Flawed Reasoning
Ten workers could be fired without any loss in production.
- Q24:
New evidence suggests that the collapse of Egypt's old kingdom…Strengthen
The collapse of Egypt's old kingdom was caused by environmental trouble and not social strife.
- Q25:
Inflation rates will not stabilize unless the rate of economic…Parallel Reasoning
It's not likely we will get inflation under control.
- Q26:
The number of applications for admission reported by North American…Weaken – Exception
The number of North Americans interested in art history as a career has declined in the last four years.
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