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2015-02-28T09:09:25+05:30

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it is not possible case only with odd numbers because the sum of odd 3 numbers doesnt result an even number. i.e., we cant get 30 by using those numbers. to get 30 we have to take one number as 3! (3×2×1) = 6
    so  3!+15+9=30
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2015-02-28T12:58:14+05:30

let the numbers be a,b,c and are odd
a + b = odd + odd = even,
even + c = even + odd = odd
therefore its not possible 



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