Logical ReasoningDifficulty: Easy

PT137 S3 Q3 Explanation

Unless the building permit

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

TopicsSufficient Assumption

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Stimulus

Unless the building permit is obtained by February 1 of this year or some of the other activities necessary for construction of the new library can be completed in less time than originally planned, the new library will not be completed on schedule. It is now clear that the the new library will not be completed on schedule.

What this question is testing

Sufficient Assumption

Your task

Find the assumption that, if added, guarantees the conclusion follows.

Common trap

Answers that only partly bridge the gap, leaving the conclusion unproven.

Winning move

Identify the new term in the conclusion and pick the choice that links it to the evidence.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
3.

The conclusion drawn follows logically from the premises if which one of the

Answer choices

  1. Correct87% picked this

    All of the other activities necessary for construction of the library will take at least as much

    Why this is right

    This ensures that the other activities necessary for construction of the new library cannot be completed in less time.

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

  2. Too Weak3% picked this

    The offcials in charge of construction of the new library have admitted that it probably will not

    The term “probably” is not strong enough to prove that the library will not be completed on time.

  3. Supports a Premise5% picked this

    The application for a building permit was submitted on January 2 of this year, and processing building permits always

    This supports the second premise of the argument.

  4. Supports a Premise0% picked this

    The application for a building permit was rejected the first time it was submitted, and it had to be resubmitted

    This supports the second premise of the argument.

  5. Supports a Premise5% picked this

    It is not possible to convince authorities to allow construction of the library to begin before the

    This supports the first premise of the argument.

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