Solve the problem.
-A loaded moving truck is traveling 25 mph faster than a freight train. In the time it takes the train to travel 90 miles, the truck travels 140 miles. Find the speed of the truck.
A)14 mph
B)140 mph
C)70 mph
D)25 mph

Question

Quizplus · Accepted Answer

The speed of the truck is 70 mph. To solve this, let the speed of the train be x mph. Then, the speed of the truck is x + 25 mph. Since distance = speed × time, and they travel for the same amount of time, we can set up the equation 90/x = 140/(x + 25). Solving for x gives the train's speed as 45 mph, so the truck's speed is 45 + 25 = 70 mph.

Solve the Problem. -A Loaded Moving Truck Is Traveling 25 Mph Faster Than