GMAT Quantitative Reasoning Practice Test 6

Question : 52 of 100

Marks: +1, -0

Is the largest of 7
consecutive numbers odd?
(1) The product of the seven numbers is zero.
(2) The sum of the seven numbers is zero.

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 statement (1) we learn that there is a 0 among the seven numbers, yet the largest number can be odd or even.

(0, 1, 2, 3, 4, 5, 6)

(-1, 0, 1, 2, 3, 4, 5)

. From statement (2) we know that the numbers are located symmetrically around the zero, therefore the largest number is even.

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