GRE Question of the Day (July 2)

Math

The runners on a cross country team ran a 5-mile race at average (arithmetic mean) speeds ranging from 4 miles per hour to 7 miles per hour, inclusive. Which of the following are possible race completion times for individual members of the team?

Indicate all such times.

A. 36 minutes

B. 48 minutes

C. 60 minutes

D. 75 minutes

E. 90 minutes

F. 120 minutes

Question Discussion & Explanation

Correct Answer - B, C, and D - (click and drag your mouse to see the answer)