Question 1117004: In how many ways can four people be chosen from a group of 15 people to take out the trash after a party
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! In how many ways can four people be chosen from a group of 15 people to take out the trash after a party
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If there's no distinction between them:
15*14*13*12 = 32760 ways.
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But, choosing A, B, C & D is the same as B, D, A & C, so each group can be chosen 4,3,2,1 ways = 24
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32760/24 = 1365 ways
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