LSATHacks
  • Explanations
  • Tutoring
  • Courses
  • Login
  • Cart
  • Explanations
  • Tutoring
  • Courses
  • Login
  • Cart
LSAT Explanations › PrepTest 153 › Section 2

Logical Reasoning

PrepTest 153 Section 2

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:
    In situations where it is difficult to make informed decisions…Complete the Argument

    Manufacturers should label their products with information about their energy consumption [predicted conclusion]

  2. Q2:
    Biologist: Some small animals will instinctively go limp…Paradox

    Small animals "play dead" when faced with a predator.

  3. Q3:
    Food columnist: Only 2 percent of imported seafood…Argument Evaluation

    Domestic seafood is more likely to be safe to eat than imported seafood.

  4. Q4:
    Dog owner: In general, large dogs need less intensive exercise…Necessary Assumption

    Large dogs will likely be less troublesome than small dogs if the owner has limited time to exercise them.

  5. Q5:
    One theory concerning the importance of vitamin C…Most Strongly Supported

    Vitamin C is important for producing and maintaining collagen.

  6. Q6:
    Principle: If someone makes an error, it is unethical for…Principle

    Mark's use of Rashmi's clients' e-mail addresses was unethical.

  7. Q7:
    Kevin: My barber shop sells an herbal supplement that…Flawed Reasoning

    The herbal supplement does not work as Kevin's barber claims.

  8. Q8:
    Analyst: When Johnson attacked his opponent by quoting her…Principle – Justify

    Johnson's campaign runners do not actually believe that the quote was more damaging in context.

  9. Q9:
    Ellen: A group of economists and ecologists recently estimated…Point at Issue
  10. Q10:
    Researchers have found that most people's bodies make an enzyme…Complete the Argument

    Smokers with the most common form of the enzyme tend to smoke more frequently than others.

  11. Q11:
    Unlike other mechanical devices, the clock did not evolve…Most Strongly Supported

    Early clocks were more complex than later clocks.

  12. Q12:
    Regina: The additional revenue obtained from leasing government…Point at Issue
  13. Q13:
    The use of ordinary dictionaries in interpreting the law…Weaken

    The use of ordinary dictionaries for interpreting the law is justified.

  14. Q14:
    Biologists are mistaken in thinking that the fossil record…Identify the Conclusion

    The fossil record does not provide direct evidence of the course of human evolution.

  15. Q15:
    The better we understand the behavior and ecological niche…Complete the Argument

    It is harder to gain sufficient understanding to save an endangered species as it gets more endangered.

  16. Q16:
    Art may make the world more beautiful, but one should choose…Flawed Reasoning

    People should not choose to be artists.

  17. Q17:
    Critic: Vampires have traditionally been symbols of pure evil…Role in Argument

    The trend of humanizing vampires is unfortunate.

  18. Q18:
    Some killer whales eat fish exclusively, but others also eat…Strengthen

    Young harbor seals have an inherent aversion to all killer whales, but eventually learn to ignore those that only eat fish.

  19. Q19:
    Trainer: An athlete developed lower back pain after a strenuous…Flawed Reasoning

    In general, heating pads will be more effective than stretching at relieving lower back pain.

  20. Q20:
    Some literary theorists argue that since literary works…Role in Argument

    Some literary theorists argue against a viewpoint they themselves adopt.

  21. Q21:
    City official: Landowners must clear the snow from…Must be True

    Landowners are required to clear their sidewalks within 24 hours of a snowstorm ending.

  22. Q22:
    Critic: Almost all of the paintings from our city's art…Necessary Assumption

    Blue Irises cannot be considered part of the city's art movement.

  23. Q23:
    Critic: Journalists should have reasonable knowledge of statistics…Parallel Reasoning

    Journalists should have reasonable statistics knowledge.

  24. Q24:
    Editorialist: Landis, one of this city's top elected officials…Sufficient Assumption

    Landis violated his official duties by spending $10,000 to redecorate his office.

  25. Q25:
    Katelin says that we will be hit by a major snowstorm…Flawed Parallel Reasoning

    Katelin probably thinks the antique car show will be cancelled.

  26. Q26:
    People should patronize businesses that meet high ethical…Weaken

    When a business acts notably ethically, it should be publicized by the news media.

About this section

Originally Section 2 of PrepTest 87, administered in June 2019.

Question types

Complete the Argument3 · 12%
Flawed Reasoning3 · 12%
Most Strongly Supported2 · 8%
Necessary Assumption2 · 8%
Point at Issue2 · 8%
Role in Argument2 · 8%
Weaken2 · 8%
Argument Evaluation1 · 4%
Flawed Parallel Reasoning1 · 4%
Identify the Conclusion1 · 4%
Must be True1 · 4%
Paradox1 · 4%
Parallel Reasoning1 · 4%
Principle1 · 4%
Principle – Justify1 · 4%
Strengthen1 · 4%
Sufficient Assumption1 · 4%

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

Section 1: Reading Comprehension
Section 3: Logical Reasoning
All PrepTest 153 explanations

Hi, I'm Graeme Blake

I scored a 177 on the LSAT. I founded LSATHacks and created the LSAT Mastery Seminars to help students succeed.

I’ve personally written explanations for 5,000+ LSAT questions. If you find these explanations helpful, you'll definitely like our courses.

Join my email list for LSAT study tips and resources.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Resources

  • Articles
  • Blog
  • Free Email Course
  • LSAT Preptest Converter
  • Experimental Section Checker
  • LSAT Prep Books

About LSATHacks

  • About/Contact
  • Courses
  • Free Trial

Community

  • Discord
  • Social Media
  • Webinars
Disclaimer: Use of these explanations requires official LSAT preptests. LSAT is a registered trademark of LSAC.
LSAC does not review or endorse specific test preparation materials or services and has not reviewed this site.

© Copyright 2026 LSATHacks. All Rights Reserved. | Privacy | Terms