Two Automobiles Are 150 Kilometers Apart and Traveling Toward Each

Multiple Choice

Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60 km/h and the other is moving at 40 km/h. In how many hours will they meet?

A) 2.5
B) 2.0
C) 1.75
D) 1.5
E) 1.25