<PRE><B>Question 493244</B>
how many different numbers can be formed using 5 out of the 6 digits 1,2,3,4,5,6 if the numbers can be replaced
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# of unique sets of 5 digits: 6C5 = 6
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# of numbers that can be formed with one of those groups: 5! = 120
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Ans: 6*120 = 720 different numbers
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Cheers,
Stan H.
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