Logical ReasoningDifficulty: Easy

PT105 S1 Q12 Explanation

Alice will volunteer to work

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

TopicsParallel

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Stimulus

Alice will volunteer to work on the hospital fund­raising drive only if her brother Bruce also volunteers and a majority of the others working on the drive promise to select Bruce to manage the drive. However, although Bruce is willing to volunteer, none of the others working on the drive. Thus it is certain that Alice will not volunteer.

What this question is testing

Parallel

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
12.

In which one of the following arguments is the pattern of reasoning most similar to the pattern of reasoning

Answer choices

  1. Trap2% picked this

    Bill and Steve will work together at the bake sale tomorrow only if Bill has enough time. However, since Bill has quite a few

  2. Trap5% picked this

    Leon will go to the picnic only if Vera also goes. However, according to his friends Leon does not plan to go to the

  3. Correct86% picked this

    Jim will go to the party only if both Sam and Elaine also go. Sam is going to the party, but Elaine is not

    Why this is right

    Answer C is correct.

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

  4. Trap1% picked this

    If Paula works with Elise, then Jane will work with Arthur only. However, if Paula does not work, Elise will also work with Jane.

  5. Trap6% picked this

    Therese will work in the yard tomorrow only if Maria helps her and it is not raining. Although Maria does not like working in

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