A car traveling 68 miles per hour passes a bus traveling 61 in the same direction on the highway. If they maintain their speeds, how long will it take them to be 17.5 miles apart?
A) 3.5 hours
B) 3 hours
C) 5 hours
D) 2.5 hours

Question

Quizplus · Accepted Answer

To find the time it takes for the car and bus to be 17.5 miles apart, we calculate the relative speed between them. The car travels at 68 mph and the bus at 61 mph, so their relative speed is 68 - 61 = 7 mph. To cover a distance of 17.5 miles at a speed of 7 mph, it takes 17.5 / 7 = 2.5 hours.

A Car Traveling 68 Miles Per Hour Passes a Bus