Question

1,3,5,7,9,11,13,15get 5 number and solve 30

Answer 1

it is impossible because if we add 5 odd numbers(or any number odd times) it will never get a even number... 

Answer 2

( 15 * 3 ) - 5 - 9 - 1 = 30

1) 15*3 = 45
2) 45-5 = 40
3) 40-9=31
4) 31-1=30