SOLUTION: If 4 students are to be picked to participate in a singing contest from a class of 20, how many ways can they be selected if order is important?

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Question 1104235: If 4 students are to be picked to participate in a singing contest from a class of 20, how many ways can they be selected if order is important?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If 4 students are to be picked to participate in a singing contest from a class of 20, how many ways can they be selected if order is important?
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20P4 = 20!/(20-4)! = 20!/16! = 20*19*18*17 = 116280 ways
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Cheers,
Stan H.
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