Flawed ReasoningDiff: Medium

Logic Breakdown

Passage Summary: Since Moore is the only plumber in town who has had complaints filed against him, he must be bad at his job.

Conclusion: Moore is an incompetent plumber who is unreliable.

Reasoning: In this specific town, every single complaint filed against a plumber was directed at Moore's business.

Analysis: This argument is a bit like saying a goalie is terrible because he's the only one on the team who let in goals, while ignoring the fact that he's the only goalie on the roster. We don't know how many other plumbers work in this town; if Moore is the only one, he would naturally receive 100% of the complaints. Even if there are others, Moore might handle the vast majority of the town's work, making a few complaints statistically insignificant. You should anticipate an answer that points out the lack of information regarding the total number of plumbers or the volume of work Moore performs.

Passage Stimulus

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21.

The argument is questionable because it fails to consider

Correct Answer
B
B is correct because if there are few or no other plumbers, then naturally every complaint about a plumber would be about Moore, regardless of his skill. The argument overlooks this possibility and treats “every complaint was about Moore” as strong evidence of poor quality without considering the market context.
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