SOLUTION: How many ways can an IRS auditor select 4 of 12 tax returns for an audit?

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Question 284332: How many ways can an IRS auditor select 4 of 12 tax returns for an audit?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many ways can an IRS auditor select 4 of 12 tax returns for an audit?
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12C4 = 12!/[(12-4)!*4!] = 12*11*10*9/1*2*3*4 = 495 ways
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Cheers,
Stan H.