SOLUTION: Find the number of 7 digit numbers the sum of whose digits is even?

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Question 210687: Find the number of 7 digit numbers the sum of whose digits is even?
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!

The digits are: 0 through 9 only.
All you have to do now is play with the digits in terms of addition until you get a sum that is even.
I'll let you finish.