Logical ReasoningDifficulty: Hard

PT127 S1 Q25 Explanation

It is difficult to grow

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

TopicsMust be False

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Stimulus

It is difficult to grow cacti in a humid climate. It is difficult to raise orange trees in a cold climate. In most parts of a certain country, it is or easy to raise orange trees.

What this question is testing

Must be False

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
25.

If the statements above are true, which one of the following must

Answer choices

  1. Correct56% picked this

    Half of the country is both humid

    Why this is right

    This contradicts the inference we made by combining the Most claim with the two conditionals. In order to grow cacti easily, it can't be humid. In order to raise orange trees, it can't be cold. If half of the country is both humid and cold, as this answer choice says, then in 50% of the country you can't grow cacti easily and you can't raise orange trees easily. That would mean in at most 50% of the country can you grow cacti or orange trees easily. This would contradict the final sentence, which says in more than 50% you can grow one or the other easily.

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

  2. Out of Scope: hot Compatible3% picked this

    Most of the country is

    Temperatures don't exist in a binary where it's always cold or hot. If most of the country is hot, then most of the country is not cold. And if most of the country is not cold, then in most of the country it's hard to raise orange trees. Does that contradict the last sentence? No, because the last sentence isn't saying, "in most of the country it's easy to raise orange trees", it's saying "in most of the country it's easy to raise orange trees or cacti". It may be that in 30% of the country it's easy to grow oranges, and in a non-overlapping 30% of the country it's easy to grow cacti. That would mean that in 60% (i.e. most) of the country, you can grow oranges or cacti easily.

  3. Compatible15% picked this

    Some parts of the country are neither cold

    In order to contradict a weakly worded answer, we would need to have read something extreme. To contradict this answer, we would need to know that all parts of the country are cold, humid, or both. Were we told that? Nope, so nothing we read contradicts this answer.

  4. Compatible21% picked this

    It is not possible to raise cacti in

    This seems very tempting, since we heard "in most parts of the country, it's easy to grow cacti", didn't we? Doesn't "easy" imply "possible? Yes, it would. But we only heard that "in most parts of the country, its easy to grow cacti or raise orange trees". I can say, "Most NFL players either played football in college or played in a league on the surface of Mars". I can say, "Most US Presidents have either served their term on planet Earth or served their term on Mars". These are stupid, vacuously true statements in the sense that there are 0 NFL players and 0 US Presidents who were on Mars. But it's true that most NFL players can check box 1 (college ball) or box 2 (martian ball), so it's a true statement. Similarly, it might be that in this country it's impossible to raise / grow cacti anywhere. But in 60% of the country, you can easily raise orange trees. If so, then it's still true to say, "In most of this country you can easily raise orange trees or cacti".

  5. Compatible5% picked this

    Most parts of the country are

    If most of the country is humid, then you can only grow cacti easily in at most 49% of the country. Does that contradict the final sentence, then? No, because the final sentence is giving us two options: In most of the country, you can check one or more of these boxes: [ ] easy to grow cacti [ ] easy to raise orange trees Up to 49% of the country can check box 1, so as long as at least 2% of non-overlapping parts can check box 2, then the last sentence can still be true.

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