Question

Use three odd numbers from 1 to 15 and the resulting answer should be 30.
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Answer 1

The sum of three odd numbers gives an odd number
So, the sum of 3 given odd numbers doesn’t results 30
So, it is an impossible factor
here we can't use 3! too
because 3! [3×2×1] results a even number 6
so we can’t use it.
If there will be an allowance of factorials, then the answers will be
3! + 15 + 9 =30
3! + 11 + 13 = 30

Answer 2

3! + 15 + 9 = 30 (ANSWER)