SOLUTION: How many four digit even no.s can be formed from 1,2,3,4,5?????

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Question 890234: How many four digit even no.s can be formed from 1,2,3,4,5?????
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Why so many question marks?
Doesn't 1 indicate a question?