GMAT Practice Question Set #61 (Question 181-183)

Problem Solving Question #182: Triplets in Triathlon  
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Triplets Adam, Bruce and Charlie enter a triathlon. There are nine competitors in the triathlon. if every competitor has an equal chance of winning, and three medals will be awarded, what is the probability that at least two of the triplets will win a medal?

(A)

`1/2`

(B)

`1/8`

(C)

`3/8`

(D)

`15/64`

(E)

`19/84`

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