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GMAT Club

GMAT Question of the Day (October 13)

Jeff 0

Math

\frac{15^{11} - 15^{10}}{14} = ?

A. \frac{1}{14}
B. \frac{15}{14}
C. \frac{15^{10}}{14}
D. 15^{10}
E. 1

 

Question Discussion & Explanation

Correct Answer - D - (click and drag your mouse to see the answer)
GMAT Daily Deals

Verbal

Standardized Test Writer: The most difficult items on our most difficult standardized test average a correct response rate of 18%. But two questions that I have written are currently averaging a correct response rate of 7%, so they must be among the most difficult legitimate questions on any of our standardized tests.

Which of the following, if true, would most weaken the test writer’s argument?

A) The test questions are still in an experimental stage.
B) The test questions have not been vetted by any other test writers.
C) The standardized test writer is inexperienced.
D)No standardized test question with a rate below 20% is considered easy.
E) Both questions have multiple answers that are technically correct, but only one answer that is credited as correct.

 

Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)

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