GMAT Quantitative Reasoning Practice Test 4

Question : 40 of 100

Marks: +1, -0

X

and

Y

are integers. If

4 X+3 Y=3 Y-X

, which of the following is true?

Solution:

4 X+Y=3 Y-X → 3 X=2 Y

. The right side of the equation is definitely even. Therefore,

X

must also be even since it is multiplied by an odd number (3).

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