SOLUTION: How many different groups of 3 can be selected out of 10

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Question 852614: How many different groups of 3 can be selected out of 10
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
P(10,3) = 10!/(10-3)!
P(10,3) = 10!/(7)!
P(10,3) = (10x9x8x7x6x5x4x3x2x1)/(7x6x5x4x3x2x1)

P(10,3) = 10x9x8

P(10,3) = 720 groups can be selected.