If a and b are two odd positive integers such that a > b, then prove that one of the two numbers `(a+b)/2 and (a-b)/2` is odd and the other is even.

Explanation

We have


`a` and` b `are two odd positive integers such that `a` &` b`


but we know that odd numbers are in the form of `2n+1 `and `2n+3` where `n `is integer.


So, `a=2n+3, b=2n+1, n∈1`


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