Logical ReasoningDifficulty: Medium

PT1 S3 Q12 Explanation

Some of the most prosperous nations

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

TopicsFlaw

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Stimulus

Some of the most prosperous nations in the world have experienced a pronounced drop in national savings rates—the percentage of after-tax income an average household saves. This trend will undoubtedly continue if the average age of these nations’ populations fewer reasons to save than do younger people.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that 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.

Which one of the following indicates an error in the reasoning leading to

Answer choices

  1. Trap7% picked this

    It fails to specify the many reasons younger people have for saving money, and it fails to identify which of

  2. Trap3% picked this

    It assumes that a negative savings rate—the result of the average household’s spending all of its after-tax income as well as some of its

  3. Trap5% picked this

    It fails to cite statistics showing that the average age of the population of certain

  4. Correct79% picked this

    It only takes into account the comparative number of reasons older and younger people, respectively, have for saving, and not the

    Why this is right

    Answer D is correct.

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

  5. Trap6% picked this

    It uses after-tax income as the base for computing the national savings rate without establishing by argument that after-tax income is a

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