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LSAT Explanations › PrepTest 134 › Section 3

Logical Reasoning

PrepTest 134 Section 3

Find the question you’re working on. Explore the reasoning, understand each answer, and learn from your mistakes.

26 question explanationsScored section

Choose a question

Explanations for every question, find them by number or text.

  1. Q1:
    "Hot spot" is a term that ecologists use to describe…Complete The Argument

    We should preserve hot spots.

  2. Q2:
    Principle: If you sell an item that you know to be…Principle – Flawed Reasoning

    Wilton committed fraud.

  3. Q3:
    Engine noise from boats travelling through killer…Complete The Argument

    Boats affect killer whales' hearing. (my guess at the conclusion)

  4. Q4:
    Journalist: A manufacturers' trade group that has long…Flawed Reasoning

    Bruch Industries isn't a member.

  5. Q5:
    Peter: Unlike in the past, most children's stories…Point At Issue
  6. Q6:
    Local resident: An overabundance of algae must be…Flawed Reasoning

    An excess of algae is bad for the small fish in the pond.

  7. Q7:
    Tanner: The public should demand political debates…Point At Issue
  8. Q8:
    A recent study shows that those highways that carry the…Paradox

    Congested highways have the lowest fatal accident rate.

  9. Q9:
    In some jurisdictions, lawmakers have instituted sentencing…Strengthen

    Lawmakers think that bribery and theft are equally harmful.

  10. Q10:
    People often admonish us to learn the lessons of…Role in Argument

    People are wrong to tell us we should learn the lessons of history.

  11. Q11:
    Sigerson argues that the city should adopt ethical…Flawed Reasoning

    Sigerson's proposal isn't honest.

  12. Q12:
    Some gardening books published by Garden Path Press…Necessary Assumption

    Some of Garden Path's books are bad.

  13. Q13:
    Astronomers have found new evidence that the number of…Paradox

    Astronomers haven't changed their estimates of the universe's weight, even though we've discovered 40 billion more galaxies.

  14. Q14:
    Newspaper subscriber: Arnot's editorial argues that by…Flawed Reasoning

    We can't get rid of our social ills by fixing government.

  15. Q15:
    Columnist: Shortsighted motorists learn the hard way…Weaken

    The city council made the right choice by hiring an investment advisor.

  16. Q16:
    Editorial: Cell-phone usage on buses and trains is…Role in Argument

    We shouldn't allow cell phones on airplanes.

  17. Q17:
    Science writer: The deterioration of cognitive faculties…Strengthen

    Microglia (immune cells in the brain) cause Alzheimer's.

  18. Q18:
    Lawyer: One is justified in accessing information in…Principle

    A sufficient condition and necessary condition for accessing computers are given.

  19. Q19:
    The conventional process for tanning leather uses…Necessary Assumption

    It costs less to tan leather using biological catalysts.

  20. Q20:
    One should not play a practical joke on someone…Principle

    You shouldn't play a practical joke under two conditions: if it will show contempt for the person you're playing the joke on, or if you think the joke will hurt the person.

  21. Q21:
    Economics professor: Marty's Pizza and Checkers Pizza…Sufficient Assumption

    Checkers wanted to hurt Marty's pizza when it refused the coupons.

  22. Q22:
    Science writer: Scientists' astounding success rate with…Most Strongly Supported

    Scientists usually choose which problems to work on.

  23. Q23:
    Most auto mechanics have extensive experience. Furthermore…Flawed Parallel Reasoning

    Most car mechanics know how electronic circuits work.

  24. Q24:
    If one wants to succeed, then one should act as though…Strengthen

    You should pretend to be confident if you want to succeed.

  25. Q25:
    Journalist: The trade union members at AutoFaber Inc…Parallel Reasoning

    A strike is likely.

  26. Q26:
    Acquiring complete detailed information about all the…Sufficient Assumption

    Consumers are rational when they are too lazy to research the products they buy.

About this section

Originally Section 3 of PrepTest 64, administered in October 2011.

Question types

Flawed Reasoning4 · 15%
Strengthen3 · 12%
Complete The Argument2 · 8%
Necessary Assumption2 · 8%
Paradox2 · 8%
Point At Issue2 · 8%
Principle2 · 8%
Role in Argument2 · 8%
Sufficient Assumption2 · 8%
Flawed Parallel Reasoning1 · 4%
Most Strongly Supported1 · 4%
Parallel Reasoning1 · 4%
Principle – Flawed Reasoning1 · 4%
Weaken1 · 4%

Based on our explanation classifications. Each of the 26 questions is counted once.

Section 2: Logical Reasoning
Section 4: Reading Comprehension
All PrepTest 134 explanations

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