Solve this ...

➕ + ➕ + ➕ + ➕=30

Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)

U can also repeat the numbers ...

These are all possible combinations:

1, 1, 13, 15

1, 3, 11, 15

1, 3, 13, 13

1, 5, 9, 15

1, 5, 11, 13

1, 7, 7, 15

1, 7, 9, 13

1, 7, 11, 11

1, 9, 9, 11

3, 3, 9, 15

3, 3, 11, 13

3, 5, 7, 15

3, 5, 9, 13

3, 5, 11, 11

3, 7, 7, 13

3, 7, 9, 11

3, 9, 9, 9

5, 5, 5, 15

5, 5, 7, 13

5, 5, 9, 11

5, 7, 7, 11

5, 7, 9, 9

7, 7, 7, 9

There can be a lot many solutions for the above question

some of them are

9+11+5+5=30

it can also be solved as

15+5+5+5=30

also

13+7+5+5=30