Home » GMAT » What must be true?
X, Y, Z, and W are integers. The expression X-Y-Z is even and the Expression Y-Z-W is odd. If X is even what must be true?
A. Y-Z must be odd.
B. W must be even.
C. W must be odd.
D. W must be even.
E. Z must be odd
Correct Answer: C
Explanation/Reference:
Explanation:
The first expression is even and the second is odd, the only difference between the expressions is that the first expression has X and the second has W.
So, if X is even W must be odd and the correct answer is C.
|
Download Printable PDF. VALID exam to help you PASS.
|
 |
