Question

Two trains leave stations 75 miles apart at the same time heading toward one another on parallel tracks. Train A is traveling 60 miles per hour, while Train B is going 65 miles per hour.
How long after departure do the trains pass each other?
Select one:
a. 36 minutes
b. 12.5 minutes
c. 126 minutes
d. 60 minutes

Answer 1

@dan815

Answer 2

It's 36 minutes. You can start by writing equations. The distance equation is distance= rate x time. So for train A, the equation will be d=60t. The equation for train B will be 75-d=65t. Plug in the equation A into equation B and you get: 75-60t=65t. Use algebra and solve for t. You should get 3/5. Since there is 60 minutes in an hour, multiply 3/5 by 60 and you will get 36 minutes.