Question

fill the using 1,3,5,7,9,11,13,15 (__+__+__=30)

Answer 1

there must be 4 blanks then the answer can
1)5+5+5+15
2)7+3+5+5
3)9+1+5+5

Answer 2

Answer:

The sum of three odd numbers always equal to an odd number.

So

The possible answers are:

$=> (11+9) + (3) + (7) = 30$

$=> (13+18) + (1) + (1) = 30$

$=> (7+9) + (1) + (13) = 30$