Question

(1,3,5,7,9,11,13,15)

( )+( )+( )=30 how????

Answer 1

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.

Answer 2

3!+11+13=30
*3!=1*2*3=6