SOLUTION: How many numbersbetween 1000&10000 can be formed with the digits 1,3,5,7,9 each digit used only once in each number?

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Question 990812: How many numbersbetween 1000&10000 can be formed with the digits 1,3,5,7,9 each digit used only once in each number?
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
{1,3,5,7,9}

Choose the 1st digit any of the 5 ways.
Choose the 2nd digit any of the 4 remaining ways not chosen for the 1st digit.
Choose the 3rd digit any of the 3 remaining ways not chosen for the 1st 2 digits.
Choose the 4th digit either of the 2 remaining ways not chosen for the 1st 3
digits.

That'a 5P4 = 5*4*3*2 = 120 ways

Edwin