Logical ReasoningDifficulty: Hard

PT5 S3 Q12 Explanation

The number of North American children

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

TopicsMust be True

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Stimulus

The number of North American children who are obese—that is, who have more body fat than do 85 percent of North American children their age—is steadily increasing, according over the past 15 years.

What this question is testing

Must be True

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.

If the finding reported above is correct, it can be properly

Answer choices

  1. Trap10% picked this

    When four major studies all produce similar results, those studies must

  2. Trap7% picked this

    North American children have been progressively less physically active over the

  3. Correct59% picked this

    The number of North American children who are not obese increased over the

    Why this is right

    Answer C is correct.

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

  4. Trap15% picked this

    Over the past 15 years, the number of North American children who are

  5. Trap9% picked this

    The incidence of obesity in North American children tends to increase as the

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