Re:

Triplets Adam, Bruce, and Charlie enter a triathlon. If there are 9 competitors in the triathlon, and medals are awarded for first, second, and third place, what is the probability that at least two of the triplets will win a medal? (A) 3/14 (B) [spoiler]19/84[/spoiler] (C) 11/42 (D) 15/28 (E) 3/4 ...