PrepTest 117
[lcid:3566] Prep Test 117 LSAT — Logical Reasoning — S3
Logical reasoning
Question prompt
Most people who shop
Remaining source text redacted.
Why the credited answer is right
Credited answer: D
The notes below walk through why it fits the stem and how to eliminate the rest.
Question Type
Flawed Parallel Reasoning Questions / Illustration Questions
Answer choices
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AIt is clear that Remaining source text redacted.
Why choice A is not credited
Incorrect. "[V]ery few" isn't really a most statement and one of the terms in the conclusion ("safe drivers") isn't in a premise so this has at least two points where it isn't parallel. -
BIt is clear that Remaining source text redacted.
Why choice B is not credited
Incorrect. There are no most statements here, so this is a quick elimination. -
CIt is clear that Remaining source text redacted.
Why choice C is not credited
Incorrect. The premises here are conditionals ("all") not quantified (most) statements. -
DIt is clear that Remaining source text redacted.
Why choice D matches the stem
Correct. Argument or Facts:
Argument
Valid or Flawed:
Flawed
Question Type:
Flawed Parallel Reasoning
Stimulus Summary:
Shop for groceries max 3x/month—most—Regularly buy frozen dinners
Hallstown—most—Shop for groceries max 3x/month
Therefore — Hallstown—most—Regularly buy frozen dinners
Answer Anticipation:
When you see quantifiers in a Flawed Parallel Reasoning, you should be happy! The flaw is almost certainly related to improperly drawing an inference based on those quantifiers, and you can find an answer that matches the pattern. Here, the argument is flawed in that it tries to chain together most statements, but the only inference that can be drawn from two most statements is when they share a first term. So we should look for an answer that follows the same pattern:
A—most—B
B—most—C
Therefore — A—most—C
Answer Explanation:
This answer has three most statements, so we should diagram it out:
Commute to work—most—Drive sedans
Highland County—most—Commute to work
Therefore — Highland County—most—Drive sedans
That's the same structure as the stimulus, so this is the correct answer.
Key Takeaway:
Quantifiers in a Flawed Parallel Reasoning question should be a source of joy! You should be able to eliminate at least a few answers that don't have the matching quantifiers. -
EIt is clear that Remaining source text redacted.
Why choice E is not credited
Incorrect. One of the premises here is a conditional ("only") not a most statement so we can rule this answer out.
What this tests
Discussion
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Typo in question 1 reply
Started by liz_hassett
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Please help 6 replies
Started by Theresaturner
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How does the flaw in "D" match? 1 reply
Started by DDL