If w, x, y, and z are integers such that w/x and y/z are integers, is w/x + y/z odd?
a. wx + yz = odd
b. wz + xy = odd
a. wx + yz = odd
b. wz + xy = odd
IMO B.abhasjha wrote:If w, x, y, and z are integers such that w/x and y/z are integers, is w/x + y/z odd?
a. wx + yz = odd
b. wz + xy = odd
We have to check whether (wz + xy)/xz is odd or not.
Now, considering (2) wz + xy is odd .
Since w/x and y/z is integer =>w/x + y/z should also be an integer.
Now, odd/even is never an integer so the ans. is odd.
Considering (1) we cant prove the upper equality
