Question

( )+( )+( ) = 30 options 1,3,5,7,9,11,13,15

Answer 1

Using factorial method, we can solve this sum......because when we add even numbers we do not get an odd number..........3!+15+9=30

Answer 2

we can answer this by using factorials
eg: 3!+9+15
      3!+11+13 etc..