Logical ReasoningDifficulty: Easy

PT142 S4 Q1 Explanation

Ming: Since trans fat

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

TopicsFlaw

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Stimulus

Ming: Since trans fat is particularly unhealthy, it’s fortunate for the consumer that so many cookie manufacturers have from their products.

Carol: Why do you say that? Even without trans fat, desserts do not eating.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that 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
1.

Carol’s response indicates that she interpreted Ming’s remarks to

Answer choices

  1. Ming's Actual Meaning1% picked this

    the more trans fat a cookie contains, the more unhealthy

    This answer isn't a misinterpretation. Ming would believe that the more trans fat something has, the more unhealthy it is (all other things being equal). If Carol were disagreeing with this claim, she would have said something like "A cookie with high trans fat could still be healthier than a different cookie with lower trans fat".

  2. Correct91% picked this

    food that doesn’t contain trans fat is

    Why this is right

    Carol thinks Ming is saying, "Now that they've taken the trans fat out of desserts, desserts are healthy". In other words, "If no trans fat, then healthy". Thus, she responds by saying, "Hold up -- even without trans fat, desserts still aren't healthy".

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

  3. Out of Scope6% picked this

    if a food is not healthy, then it

    Out of Scope: not healthy vs. unhealthy Neither person is dealing with a distinction between not-healthy and unhealthy. If Carol thought Ming had said this, then her disagreement would have been talking about a food like popcorn that isn't inherently healthy but we wouldn't call it unhealthy. Resisting this answer choice's idea means resisting calling something "unhealthy". (i.e. "Just because popcorn isn't a healthy food doesn't mean it's an unhealthy food") But Carol is resisting calling something "healthy". She's saying, "Just because you removed the trans fat doesn't mean that dessert is healthy."

  4. Unrelated to Carol's Response2% picked this

    a cookie containing any amount of trans fat

    It's not clear that Ming would actually sign off on the extreme wording of this claim, but it's clear that Carol isn't reacting against this. If Carol were disagreeing with this, then her rebuttal would be pointing out that a cookie with an infinitesimal trace of trans fat is not necessarily unhealthy.

  5. Unrelated to Carol's Response1% picked this

    consumers should purchase cookies only if they do not contain

    It's not clear that Ming would actually sign off on the extreme wording of this claim, but it's clear that Carol isn't reacting against this. If Carol were disagreeing with this, then her rebuttal would be sound like, "sometimes it's okay for a consumer to buy a cookie with trans fat in it".

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