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Mathematics 20 Online
OpenStudy (anonymous):

how mny different five didigt numbers can be formed from the digits 1,2,3,4, and 5 if each digit is used only once?

OpenStudy (anonymous):

5*4*3*2*1=120

OpenStudy (zehanz):

You have 5 choices for the first number, 4 for the secon, and so on...

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