GMAT Quantitative Reasoning Practice Test 5

Question : 64 of 100

Marks: +1, -0

QUESTION 464 If

W

is divisible by 7,
is

Z

even or odd?
(1)

Z=W+1

.
(2)

W=7

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:

From the question we don’t know if W is even or odd

(W = 7, 14, 21, 28…)

so statement one also is not helpful. From statement two we get no connection to Z so it’s not sufficient either.

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