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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

No you can not get 30 by adding 3 odd numbers. Actually you can not get an even number as a result when you add three odd numbers. So the above question can not be solved until you use factorial method. Thank you !