Answer :

we cant get even solution if we add odd no. we atleast want 1 even no.
Avishek
There can be many answers but the basic idea is using factorial. Factorial is the product of all the numbers from 1 to that number. For example 4! = 1 x 2 x 3 x 4 = 24.
 
So, 3! +1 + 5 + 7 +11 = 30
Similarly you can find many such answers.

Hope that helps !!

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