Logical ReasoningDifficulty: Medium

PT143 S4 Q19 Explanation

Principle: When none of the fully qualified

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

TopicsPrinciple-Strengthen

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Stimulus

Principle: When none of the fully qualified candidates for a new position at Arvue Corporation currently works for that company, it should hire the most productive in that position.

Application: Arvue should not hire Krall for the new position, because Delacruz is a fully qualified.

What this question is testing

Principle-Strengthen

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
19.

Which one of the following, if true, justifies the above application of

Answer choices

  1. Not Most Productive?2% picked this

    All of the candidates are fully qualified for the new position, but none already

    With no fully qualified candidates working for Arvue, we'd move on to picking based on who's most productive, and this answer doesn't compare Krall vs Delacruz on that level.

  2. No In-House Candidates?12% picked this

    Of all the candidates who do not already work for Arvue, Delacruz would be the most productive

    If there aren't any fully qualified in-house candidates, then Delacruz would be our pick. But this answer doesn't reveal whether there are any fully qualified candidates who already work for Arvue.

  3. Krall Fully Qualified?10% picked this

    Krall works for Arvue, but Delacruz is the candidate who would be most productive in

    If Krall is fully qualified (and if Delacruz is an outsider), then Krall might be the person they'd hire. We're not sure from this answer whether Delacruz also works for the company or whether Krall is fully qualified.

  4. Other Candidates Fully Qualified?2% picked this

    Several candidates currently work for Arvue, but Krall and Delacruz

    If those in-house candidates are fully qualified, then we won't even trigger this rule and reach the stage of analyzing who'd be most productive. But we don't know And this answer doesn't tell us who would win between Krall and Delacruz on that level. So there's no way to rule out Krall as the new hire.

  5. Correct75% picked this

    None of the candidates already works for Arvue, and Delacruz is the candidate who would be most productive

    Why this is right

    The first fact triggers our rule, since no fully qualified applicants (or un-fully qualified, apparently) work for the company. Once triggered, the rule says we have to pick the most productive, who is Delacruz. Hence, we have proven that we will not pick Krall.

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

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