Question
Quantitative Aptitude Question on Basic Algebra
If 'x' and 'y' are positive integers and 'x + y' is even, then which of the following must always be even?
A
x
B
y
C
x (y + 1)
D
(x+1) (y + 1)
Answer
x (y + 1)
Explanation
Solution
The correct answer is (C): x (y + 1)