At a track event, runners, long jumpers, and throwers are present. All of the runners are long jumpers, and none of the throwers are runners.
If the statements above are true, then which of the following must also be true?
A)All of the long jumpers are runners.
B)Most of the throwers are not long jumpers.
C)Some of the long jumpers are not throwers.
D)All of the runners are also throwers.
E)None of the throwers are also long jumpers.

Question

Quizplus · Accepted Answer

It must be true that some of the runners are not throwers. If none of the throwers are runners, and all the runners are long jumpers, then it must be true that there are at least some long jumpers who are not throwers, because if they were throwers they would have to run.

At a Track Event, Runners, Long Jumpers, and Throwers Are