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*The sum of three odd numbers gives an odd number*

*So, the sum of 3 given odd numbers doesnt 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 cant use it.*

*If there will be an allowance of factorials, then the answers will be*

*3! + 15 + 9 =30*

*3! + 11 + 13 = 30*