SOLUTION: How many 4-letter codes can be formed using the first 10 letters of English alpha bets, if no letter can be repeated?
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Question 849878: How many 4-letter codes can be formed using the first 10 letters of English alpha bets, if no letter can be repeated? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! How many 4-letter codes can be formed using the first 10 letters of English alpha bets, if no letter can be repeated?
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Ans: 10*9*8*7 = 10P4 = 5040
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Cheers,
Stan H.
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