Logical ReasoningDifficulty: Hard

PT155 S1 Q21 Explanation

Guidelines for constructing new Bonjour hotels

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

TopicsPrinciple-Conform

Keep going in LSAT Lab

  • Save & drill this skill build targeted practice sets from questions like this one

  • Video walkthroughs watch every question solved step by step

  • 81 official LSATs as questions, timed sections & full-length tests

Full official LSAT questions are available through LawHub. This page provides LSAT Lab's explanation, strategy, and review tools without republishing the full official question.

Stimulus

Guidelines for constructing new Bonjour hotels: A hotel is to have a radiant floor heating system installed if a radiant floor cooling system is being installed or if it is to be a luxury hotel; however, a radiant floor cooling system should not be installed in that tends to have high humidity during the summer.

What this question is testing

Principle-Conform

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
21.

The reasoning in which one of the following is most strongly supported

Answer choices

  1. Bad Trigger Match2% picked this

    The newest Bonjour hotel should not have a radiant floor cooling system installed, for it is not being newly constructed and it

    This is concluding "shouldn't have cooling", so we're trying to use the 2nd guideline. We need to know that this hotel is in an area with lots of summer humidity, but we are not told that.

  2. Correct63% picked this

    The newest Bonjour hotel should have a radiant floor heating system but not a radiant floor cooling system installed, for it will be a

    Why this is right

    The conclusion is "should have heating", so we're using Guideline 1. But it's also concluding "should not have a radiant floor cooling system", so it's also using Guideline 2. To trigger "should have heating" we need to know it's getting radiant floor cooling or that it's a luxury hotel. We're told that it's a luxury hotel, so we're good to go on guideline 1. To conclude that it "should not have radiant floor cooling", we need to know that this region tends to have high humidity in the summer. Since we're told this region has high humidity throughout the year, then it definitely has high humidity in the summer, so we're good to go on guideline 2 as well.

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

  3. Bad Trigger Match4% picked this

    The newest Bonjour hotel should not have a radiant floor cooling system installed, for it will not be a luxury hotel and it will

    This is concluding "shouldn't have cooling", so we're trying to use the 2nd guideline. We need to know that this hotel is in an area with lots of summer humidity, but we are not told that.

  4. Bad Conclusion Match10% picked this

    The newest Bonjour hotel should have neither a radiant floor heating system nor a radiant floor cooling system installed, for it will be a

    This is concluding "shouldn't have cooling and shouldn't have heating". Guideline 2 allows us to prove that a hotel shouldn't have radiant floor cooling, but we have no means of proving that a hotel shouldn't have radiant floor heating, so the conclusion makes this one a non-starter.

  5. Bad Conclusion Match21% picked this

    The newest Bonjour hotel should have both a radiant floor cooling system and a radiant floor heating system installed, for it will be a

    This is concluding "should have cooling and should have heating". Guideline 1 allows us to prove that a hotel should have radiant floor heating, but we have no means of proving that a hotel should have radiant floor cooling, so the conclusion makes this one a non-starter.

Continue the review in LSAT Lab

Save this question, watch the video walkthrough, and drill similar questions in your LSAT Lab account.

LSAT Lab

Turn this review into a targeted study plan.

Save this question, drill more like it, watch the video walkthrough, and track your progress in your LSAT Lab account.

Start practicing free