Solve the problem.
-Two cars leave town at the same time going in the same direction. One travels at $40 \mathrm{mph}$ and the other travels at $52 \mathrm{mph}$. In how many hours will they be $48 \mathrm{mi}$ apart?
A) $1 \mathrm{hr}$
B) $40 \mathrm{hr}$
C) $4 \mathrm{hr}$
D) $12 \mathrm{hr}$

Question

Quizplus · Accepted Answer

The difference in their speeds is $52 \mathrm{mph} - 40 \mathrm{mph} = 12 \mathrm{mph}$. To be $48 \mathrm{mi}$ apart, it would take $48 \mathrm{mi} / 12 \mathrm{mph} = 4 \mathrm{hr}$.

Solve the Problem 40mph40 \mathrm{mph}40mph And the Other Travels At 52mph52 \mathrm{mph}52mph

Solve the Problem $40 \mathrm{mph}$ And the Other Travels At $52 \mathrm{mph}$