Answers

2015-03-19T13:21:07+05:30

We wont get a even number if we add odd numbers an odd number of times. 

So this has to be solved using factorial-

3! + 11 + 13 = 30.This will be a solution.

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2015-03-19T13:50:22+05:30
Here you go!
3! + 11 + 13 = 30
We won't get 30 if we add them normally, So using the factorial method. You will get the answer :).
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