Question

A car and truck traveling in opposite directions left Washington, D.C. The car traveled 19 miles per hour faster than the truck, and at the end of 3 hours the vehicles were 1448 miles apart. What was the average speed of each vehicle?

Answer 1

1391/6 and 1505/6

Explanation:

Let x be truck's speed and x+19 be car's speed. Since they are going opposite, we can set up an equation: 3(2x+19)=1448. x= 1391/6