Talk:2013 AMC 10A Problems/Problem 8
Revision as of 22:57, 6 February 2013 by Fernleaf99 (talk | contribs) (Created page with "Can anyone explain why the answer is 15???? I thought that since there are ten 2 person teams possible, there must have been five people total. (5 choose 2= 10) So, since the peo...")
Can anyone explain why the answer is 15???? I thought that since there are ten 2 person teams possible, there must have been five people total. (5 choose 2= 10) So, since the people could be in multiple committees, the number of 3 person teams would be 5 choose 3 = 10??
