GMAT Quantitative Reasoning Practice Test 8

Question : 44 of 76

Marks: +1, -0

Comp and Calc are two companies that are located on different floors in a skyscraper. How many floors does the skyscraper have?
(1) There are 24 floors between Comp’s floor and Calc’s floor.
(2) There are 32 floors above Comp’s floor and 12 floors below Calc’s floor.

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.

Validate

Solution:

Using both statements we know that Comp’s floor is the higher one among the two because there are only 12 floors beneath Calc’s floor and therefore it must be the lower one.
The number of floors in the building is

12 + 24 + 32 = 68

. The combination of the two statements is sufficient.

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