Logical ReasoningDifficulty: Hard

PT146 S2 Q14 Explanation

A study at a company found

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

TopicsMain Conclusion

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Stimulus

A study at a company found that most meetings showed diminishing returns after 30 minutes, and little could be expected after 60 minutes. Moreover, the most productive meetings were those for which a clear time frame was established. For a meeting at the company to achieve maximum time frame and be no more than 30 minutes long.

What this question is testing

Main Conclusion

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
14.

Which one of the following most accurately expresses the conclusion drawn in

Answer choices

  1. Reversal28% picked this

    In general, a meeting at the company that is no more than 30 minutes long and has a clear time

    It's weird to be dealing with this issue on Main Conclusion, but it's definitely no accident that this incredibly tempting answer was placed in spot (A). This sounds an awful lot like the conclusion, but the conclusion presented "clear time frame" and "30 min limit" as requirements of a maximally productive meeting (it needs to have X and Y), not as a guarantee of a maximally productive meeting. Last sentence: maximally productive meeting → Clear Timeframe and < 30min This answer: Clear Timeframe and < 30min → maximally productive meeting

  2. Premise1% picked this

    Most meetings at the company show diminishing returns after 30 minutes, according

    The phrase "according to a study" will pretty much guarantee something can't be a Conclusion, because it will just be some background or supporting fact, not a supported Author opinion. If we were tempted by this and asked why should we believe that "according to a study, most meetings showed diminishing returns after 30 mins" we wouldn't be able to point at either of the remaining ideas in the paragraph as support for that claim.

  3. Correct69% picked this

    A meeting at the company will be maximally productive only if it has a clear time frame and lasts

    Why this is right

    For a meeting to be Z, it needs to have Y and Z is equivalent to A meeting can be Z only if it has Y and Z They both would diagram like this, Z → Y and Z If we applied the Support Test to this answer and asked, why should we believe that "meeting will be max productivity only if they have clear time frame and stay 30 mins or less" we could point to the other two ideas as support: They'll only be maximally productive if they have those two qualities because a study found that the most productive meetings had a clear time frame and that most meeting showed diminishing returns when they went longer than 30 mins.

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

  4. Premise2% picked this

    According to a study, meetings at the company were the most productive when they had

    Anything prefaced by "moreover" is guaranteed to be another Supporting point, not a Conclusion.

  5. Premise0% picked this

    A study of meetings at the company says that little productivity should be expected after

    This is just the second half of the first sentence. The findings of a study will never be a Conclusion. What we can takeaway from those findings will be a conclusion, and that's our last sentence.

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