How much is Y percent of X ? (1) 400 \% of Y is 90 . (2) X percent of Y is 25 .

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

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 7

Question : 14 of 100

Marks: +1, -0

How much is

Y

percent of

X

?
(1)

400 \%

Y

is 90 .
(2)

X

percent of

Y

is 25 .

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:

Statement (1) gives us data on

Y

only regardless to

X

and therefore it's insufficient.
Statement (2) tells us how much is

X

percent of

Y

. Make up numbers,

X=25

and

Y=100

X

percent of

Y

is 25 but we also know how much is

Y

percent of

X, 100

400 \%

of 25 and therefore this statement is sufficient by itself.

Go to Question:

Prev Question

Next Question