Logical ReasoningDifficulty: Easy

PT115 S4 Q12 Explanation

The higher a dam, the more

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

TopicsParadox

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Stimulus

The higher a dam, the more exposed it is to forces that can cause it to collapse. Of the world’s hundreds of arch dams, more than half are over 100 meters high. Yet all six of the arch dam collapses that have occurred in arch dams under 100 meters high.

What this question is testing

Paradox

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.

Which one of the following, if true, most helps to resolve the

Answer choices

  1. Trap3% picked this

    The higher a dam must be, the greater the likelihood that it will be built

  2. Trap2% picked this

    Arch dams are generally more complicated and more costly to construct than other types of

  3. Correct90% picked this

    The larger the structure, the more careful the attention it received in

    Why this is right

    Answer C is correct.

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

  4. Trap0% picked this

    The basic engineering principles behind the design and construction of arch dams have been known for

  5. Trap4% picked this

    Arch dams under 100 meters high are less subject to collapse than are dams of other types also

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