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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

The available options are all odd numbers. We know that sum of 3 odd numbers can't result in an odd numbers. If there is an allowance of factorials , we may use 3! (3 x 2 x 1)=6 Then the answers may be 3!+15+9=30. 3!+13+11=30.