Question 940248: What is the sum of all the four-digit numbers whose digits are permutations 1,2,3, and 4?
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! What is the sum of all the four-digit numbers whose
digits are permutations of 1,2,3, and 4?
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# of permutations:: 4! = 24
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sum of one of the permutations: 1+2+3+4 = 10
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Ans: sum of all the permutations = 10*24 = 240
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Cheers,
Stan H.
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