(13-9) + (13-7) + (9-1) + (7-1) + (15-9) = 30 is this correct ?

Sum of 3 Odd No.s can never give a Even No. . Since 3(2n+1) = 6n + 3 = Even + Odd = Odd.

that's also true,but this is a tricky q.

Not a valid enough reason to break rules :p, the tricky question *cough* the trick in this question is that there is no answer.1

the correct answwer is( 5+5)( 5+5) (5+5)=30

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