Logical ReasoningDifficulty: Easy

PT103 S1 Q3 Explanation

The number of calories in a gram

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

TopicsFlaw

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Stimulus

The number of calories in a gram of refined cane sugar is the same as in an equal amount of fructose, the natural sugar found in fruits and vegetables. Therefore, a piece of candy made with a given amount of refined cane sugar is fruit that contains an equal amount of fructose.

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
3.

The reasoning in the argument is flawed because

Answer choices

  1. Trap5% picked this

    fails to consider the possibility that fruit might contain noncaloric nutrients that candy

  2. Trap2% picked this

    presupposes that all candy is made with similar amounts

  3. Trap1% picked this

    confuses one kind of sugar with

  4. Trap6% picked this

    presupposes what it sets out to establish, that fruit does not differ from sugar-based candy in the number

  5. Correct87% picked this

    overlooks the possibility that sugar might not be the only calorie-containing ingredient in

    Why this is right

    Answer E is correct.

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

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