Is X>Y ? (1) 12 X=4 C. (2) C=3 Y^4.

Correct Answer is : Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.

Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.

Either statement BY ITSELF is sufficient to answer the question.

Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

GMAT Quantitative Reasoning Practice Test 5

Question : 71 of 100

Marks: +1, -0

X>Y ?

(1)

12 X=4 C

.
(2)

C=3 Y^4

Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.
Either statement BY ITSELF is sufficient to answer the question.
Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

Solution:

Since we need to compare between

X

and

Y

, look at both statements together.
(1) and (2) state that:

12 X=4 C=12 Y^4

X=Y^4 \;\text ". "\;

Take

Y=-1, X=1: X

is bigger than

Y

.
Take

X=1

and

Y=1: X

is not bigger than

Y

.
We can see that the answer is not distinct and therefore more data is required in order to solve the question.

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