Logical ReasoningDifficulty: Easy

PT146 S3 Q10 Explanation

Consultant: If Whalley sticks

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

TopicsSufficient Assumption

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

Consultant: If Whalley sticks with her current platform in the upcoming election, then she will lose to her opponent by a few percentage points among voters under 50, while beating him by a bigger percentage among voters 50 and will allow her to win the election.

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
10.

The consultant’s conclusion follows logically if which one of the following

Answer choices

  1. Unrelated to Goal5% picked this

    There is no change Whalley could make to her platform that would win over more voters under 50 than it would

    We're only concerned with the relative number of under 50 vs. 50+ voters. This answer doesn't resolve whether there are more younger or older voters, so it won't allow us to prove that winning the older voters (by more than she loses the younger voters) will be a winning formula. This conclusion is about sticking with the current platform, so if she made any changes, it would be totally irrelevant to this conclusion.

  2. Unrelated to Goal2% picked this

    The issues that most concern voters under 50 are different from those that most concern

    We're only concerned with the relative number of under 50 vs. 50+ voters. This answer doesn't resolve whether there are more younger or older voters, so it won't allow us to prove that winning the older voters (by more than she loses the younger voters) will be a winning formula.

  3. Unrelated to Goal1% picked this

    If Whalley changes her platform, her opponent will not change his

    This conclusion is about sticking with the current platform, so if she made any changes, it would be totally irrelevant to this conclusion.

  4. Correct91% picked this

    There will be more voters in the election who are 50 and over than there will

    Why this is right

    We know that if Whalley sticks with her current platform, she'll win the 50+ group of voters by a bigger margin than she loses the under 50 voters. If that 50+ group of voters has more voters in it, then she will definitely end up with more votes. This answer rules out the possibility of our potential objection that there are more younger voters. Consider our chart from before, but with more voters in the 50+ group. vote for W vote for X 50+ 60% 40% (300ppl) 18-49 45% 55% (100ppl) W would get 225 out of the 400 votes, while X gets 175 votes. (Some of us might be bothered that this argument is not actually airtight, because they never told us that "the candidate with more votes wins the election". We might think, "Well, hey, that's just common sense", but the Presidential election in the U.S. is not won by the person with the most votes. That is just a weird feature of this and a couple other Sufficient Assumption questions. Usually, the logic of the correct answer is perfect, but sometimes the test writers are sloppy.)

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

  5. Unrelated to Goal1% picked this

    Whalley would change her platform if she thought it would give her a better

    This conclusion is about sticking with the current platform, so if she made any changes, it would be totally irrelevant to this conclusion. We need to know the relative size of the group of voters under 50 vs. 50 and up.

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