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LSAT Explanations › Preptest 115 › Logical Reasoning › Question 21

LSAT 115 | Section 4 | Logical Reasoning: Q21

LSAT Preptest 115 explanations

LR Question 21 Explanation

QUESTION TEXT: In a small town, every complaint filed about a plumber’s work…

QUESTION TYPE: Flawed Reasoning

CONCLUSION: Moore is an unreliable plumber.

REASONING: Every complaint filed against a plumber in Moore’s small town was filed against Moore.

ANALYSIS: How many other plumbers are there in Moore’s town? If he is the only plumber, this argument is worthless.

___________

  1. Presumably their interests are the same as customers who have filed complaints: receiving good work when they hire a plumber. This stimulus is attempting to inform as to who is a good plumber.
  2. CORRECT. Yes. Since he lives in a small town, Moore may be the only plumber.
  3. A poor plumber can certainly have a small business. If there are other plumbers with bigger businesses, it’s quite telling that all complaints were against Moore.
  4. Totally irrelevant. We’re concerned with plumbing complaints.
  5. This would be relevant if we were trying to prove Moore was competent because not many people complained.

Recap: The question begins with “In a small town, every complaint filed about a plumber’s work”. It is a Flawed Reasoning question. Learn how to master LSAT Flaw questions on the LSAT Logical Reasoning question types page.

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More Resources for Flaw Questions

  • Flaw drills: Use these to practice making examples of abstract flaws.
  • Intro Course lesson: This intro course lesson covers Flaw questions.
  • Mastery Seminar lesson: This LR Mastery seminar lesson covers flaw questions.
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