SOLUTION: If 0 is not being used and only two of the digits are even,how many 5-digit codes can be formed with no repetition allowed?
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Question 618311: If 0 is not being used and only two of the digits are even,how many 5-digit codes can be formed with no repetition allowed? Answer by vleith(2983) (Show Source):
You can put this solution on YOUR website! There are 5 odd digits and you are told you can have 2 non-zero even ones. So that's a total of 7 digits
The digits cannot repeat.
So you have 7 choices for the first digit in the zipcode.
Now there are 6 digits left to pick from.
So you have 6 choices for the second zicode digit.
You have 5 choices for the third one.
Then 4 for the fourth one and 3 for the last digit
How many choices is that?
You do the math !
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