Logical ReasoningDifficulty: Hard

PT152 S2 Q10 ExplanationGodinez: In the past

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

TopicsMain Conclusion

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Stimulus

Godinez: In the past, land was sometimes measured by the amount of time required to plow it. Thus, two plots of equal physical dimensions were considered unequal if one was more difficult to plow than the other. However, knowing how long an area takes to plow reveals little about how many apartment new measures of land, such as acreage, when land uses diversified.

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
10.

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

Answer choices, explained

  1. Never Stated: easier to measure1% picked this

    It is now easier to measure a piece of land in terms of acres than in

    We don't want to pick an answer on Main Conclusion that wasn't actually said (unless it's a weird question stem like Main Point or Implied Conclusion). This doesn't match the last sentence at all, since the last sentence doesn't discuss whether new measures were easier or harder than the old one.

  2. Unstated Inference7% picked this

    For modern purposes, newer methods provide a more accurate measure of land than

    The last sentence does not say anything about more accurate, so we can eliminate this. This type of trap answer tries to appeal to a different part of an LSAT student's brain. This idea sounds true, because it seems like we could infer this, but we're not trying to do anything deep or insightful. The conclusion is the last sentence and we just want an answer that repeats what was said in the last sentence.

  3. Intermediate Conclusion1% picked this

    Some plots of land that would have been considered unequal by plowing-time measurements are of

    This isn't really an intermediate conclusion, in the sense that the author's eventual conclusion isn't using this idea at all. But this answer is trying to mimic what was said in the second sentence which was a conclusion / implication derived from the logic of the old measurement method. We could say this claim is supported/implied by the first sentence, but we can't say this is the main conclusion, since the paragraph goes on to Pivot with "however" and then end with a main conclusion, signaled by "Therefore".

  4. Weak Match19% picked this

    Modern measures of land were adopted when people realized that plowing time was an inadequate measure

    This seems pretty close to regurgitating the last sentence. However, the last sentence doesn't mention modern measures. And the last sentence says that new measurements were adopted when land uses diversified. This answer says new measurements were adopted when people realized plow time was inadequate for some land uses. Those are pretty close, but (D) doesn't convey the same idea the conclusion does, that people were actually beginning to use land in different ways. Instead, we could read (D) as saying, people looked around at the ways they were already using land and decided that "plow time" was inadequate for some of them. Ultimately, we'd probably be okay picking this answer and living with its slight differences if we didn't have a tighter lock for the last sentence available.

  5. Correct72% picked this

    The advent of diversified land uses made new measures of

    Why this is right

    This matches the meaning of the last sentence. "The advent" = "the beginning / the start" When land uses diversified (the advent of diversified land) it became necessary to adopt new measure of land (new measures of land were necessary)

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

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