!!solve it!!
 

Fill the boxes using 1,3,5,7,9,11,13,15 you can also repeat the numbers.

___ + ____ +_____ = 30

wasted my 10 minutes!
i think it is not possible....

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Its useless even to try to solve it. Odd numbers in any combination of addition involving odd number of operands can never result in an even number.

[quote=usman ali gul;927981]fill the boxes using 1,3,5,7,9,11,13,15 you can also repeat the numbers.

___ + ____ +_____ = 30[/quote]

3-1=[u]2[/u] [u]13[/u] [u]15[/u] =30

[quote=usman ali gul;927981]fill the boxes using 1,3,5,7,9,11,13,15 you can also repeat the numbers.

___ + ____ +_____ = 30[/quote]
3 odd numbers cant be added to give an even number ...
Simple