An automotive test consisted of driving a car the same distance three separate times, first at an average rate of 40 miles per hour, then 50 miles per hour, then 60 miles per hour. If the test took 37 hours to complete, how many miles was the car driven during the entire test?

A. 400
B. 600
C. 1200
D. 1800
E. 2400



OA D

Source: Veritas Prep