Ronald is a runner on the track team and is a great hurdler. All runne

Question

Ronald is a runner on the track team and is a great hurdler. All runners on the track team are either sprinters or long distance runners, but a few long distance runners do not run the sprint because they are not fast enough. Hurdlers never run long distance because they lack the endurance necessary. Therefore, Ronald must be fast.

For the conclusion drawn above to be logically correct, which of the following must be true?

A. Sprinters are faster than hurdlers.

B. All runners on the track team who run hurdles also run long distance.

C. Hurdling requires more endurance than running long distance.

D. All sprinters are fast.

E. Every runner on the track team who is fast is a sprinter.

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Shwarma · Answer

Option D

Conclusion: Ronald must be Fast
Given: In runners-> two types: Sprinters and long distance.
But NO hurdler is long-distance..  so Ronald IS a Sprinter. 
But Ronald MUST BE fast.. meaning -> hurdlers are fast or sprinters are fast.
Thus Option D

sayan640 · Answer

Hurdlers never run long distance and Ronald is a great hurdler. So Ronald must not be a long distance runner. But he is in the track team and everyone in the track team is either a long distance runner or a sprinter. Hence Ronald must be a sprinter.
Conclusion says Ronald is fast.
Option D supports the conclusion saying that all sprinters are fast and hence Ronald must be fast.
D is the answer.

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Bunuel · Answer

KAPLAN OFFICIAL EXPLANATION:

D

Conclusion:  Ronald must be fast.

Evidence:  We are given that Ronald is a hurdler, and that all the runners on the track team are either sprinters or long distance runners, but no hurdlers are long distance runners. Therefore Ronald, a hurdler, must also be a sprinter. For the conclusion to be logically correct, (D) must be true because if Ronald is a sprinter, and all sprinters are fast, then Ronald must be fast.

(A) makes no sense because the argument states that all hurdlers are sprinters; (B), (C), and (E) directly contradict statements made in the argument.

Ronald is a runner on the track team and is a great hurdler. All runne

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Ronald is a runner on the track team and is a great hurdler. All runne

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

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745 with Only Self-Prep and GMAT Club

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My Rewards