SOLUTION: How many 3 letter arrangements are possible using the 26 letters of the alphabet if no letter can be used more than once?

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Question 278516: How many 3 letter arrangements are possible using the 26 letters of the alphabet if no letter can be used more than once?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
26*25*24=15,600 ANS.