Logical ReasoningDifficulty: Easy

PT116 S2 Q5 Explanation

Shipping Coordinator: If we send

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

TopicsFlaw

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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

Shipping Coordinator: If we send your shipment by air express, it will arrive tomorrow morning. If we send your shipment via ground carrier, it will arrive either tomorrow or the next day. Ground express, so which do you prefer?

Customer: If I don’t choose air express, then I will not receive my shipment tomorrow, so I clearly have no choice but to spend the sent via air express.

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
5.

The customer’s response can best be explained on the assumption that she has misinterpreted the shipping coordinator to mean which

Answer choices

  1. Trap1% picked this

    Ground carrier is as reliable a shipping method as

  2. Trap1% picked this

    If the shipment is sent by air express, it will

  3. Trap0% picked this

    Ground carrier is not more expensive than

  4. Correct94% picked this

    Unless the shipment is sent by air express, it will not

    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. Trap4% picked this

    The greater the shipping cost, the faster the shipment

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