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| Question 559256:  How many possibilities are there when you select 5 keyboards out of a total 25 keyboards. Order does not matter, thus meaning 1,2,3,4,5 would be the same as 1,2,3,5,4
 Answer by stanbon(75887)
      (Show Source): 
You can put this solution on YOUR website!  How many possibilities are there when you select 5 keyboards out of a total 25 keyboards. Order does not matter, thus meaning 1,2,3,4,5 would be the same as 1,2,3,5,4 -----
 25C5 = 25!/(20!*5!) = (25*24*23*22*21)/(1*2*3*4*5) = 53130
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 Cheers,
 Stan H.
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