SOLUTION: how many 4 digit numbers can be made using the digits 1,3,5,7,9
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Question 617622: how many 4 digit numbers can be made using the digits 1,3,5,7,9
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how many 4 digit numbers can be made using the digits 1,3,5,7,9
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With repetition: 5^4 = 625 numbers
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Without repetition: 5! = 120 numbers
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cheers,
Stan H.
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