Question

Two trains leave a station at the same time. One train is heading south at a rate that is 1.5 times faster than the other train, which is heading north. After 5 hours, the trains are 750 miles apart. At what speed, in mph, are the two trains getting farther away from each other?

Answer 1

150 mph

Explanation:

The relationship between time, speed, and distance is ...

speed = distance/time

Application

The trains have separated 750 miles in 5 hours, so their rate of separation is ...

(750 mi)/(5 h) = 150 mi/h

The trains are separating at a speed of 150 mph.