SOLUTION: How many odd 4 digit numbers can be formed using digits 0 to 9 such that digits cannot repeat?

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Question 869865: How many odd 4 digit numbers can be formed using digits 0 to 9 such that digits cannot repeat?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Odds: 1, 3, 5, 7, 9
How many odd 4 digit numbers: 5%2A4%2A3%2A2