Logical ReasoningDifficulty: Medium

PT135 S4 Q10 Explanation

In trying to reduce the amount

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsParadox

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Stimulus

In trying to reduce the amount of fat in their diet, on average people have decreased their consumption of red meat by one-half in the last two decades. However, on average those who have reduced their substantially more fat than those who have not.

What this question is testing

Paradox

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
10.

Which one of the following, if true, most helps to resolve the apparent

Answer choices

  1. Unrelated to Goal0% picked this

    Many more people have reduced their consumption of red meat over the last two decades

    We're out here hunting for a reason why the reduced-meat group suddenly has more fat in their diet. This doesn't say anything about fat.

  2. Unrelated to Goal1% picked this

    Higher prices over the last two decades have done as much to decrease the consumption of red meat

    We're out here hunting for a reason why the reduced-meat group suddenly has more fat in their diet. This doesn't say anything about fat.

  3. Too Weak23% picked this

    People who reduce their consumption of red meat tend to consume as much of other foods that are high in fat as do those

    This answer can help us explain why the reduced-meat crowd would have comparable fat in their diet to the regular-meat crowd. Maybe there's not much fat in red meat, so getting rid of red meat doesn't eliminate much fat. And in all other respects their diets are similar, so they end up consuming about as much fat as the regular-meat crowd. But that's not our job. We need to explain how the reduced-meat crowd has substantially more fat in their diet, not comparable amounts of fat.

  4. Correct75% picked this

    People who reduce their consumption of red meat tend to replace it with cheese and baked goods, which are richer

    Why this is right

    This helps us explain why the reduced-meat group has more fat in their diet than the regular-meat group. When you reduce your meat consumption, you tend to replace it with things that are even richer in fat then the meat you were previously eating.

    Skill tested: Paradox · how this choice captures the argument's function is the move to repeat next time.

  5. Too Weak1% picked this

    Studies have shown that red meat contains slightly less fat than

    Similar to (C), the most charitable version of this answer choice would only help explain why the reduced-meat group doesn't have significantly lower amounts of fat in their diet. It would be suggesting "getting rid of meat doesn't really get rid of that much fat". But we need a mechanism for explaining why the reduced-meat people have way more fat than the people who are still eating meat. Finally, this answer does not actually say that "getting rid of meat doesn't really get rid of that much fat". It just says that we now realize meat doesn't have quite as much fat as we previously thought. But if we previously thought it had 20g of fat per serving, and now we think it really only has 19g of fat per serving (slightly less than previously thought), then getting rid of meat in out diet would still be getting rid of 19g of fat!

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