A car leaves a town 20 minutes after a truck leaves. The speed of the car is 10 miles per…

A car leaves a town 20 minutes after a truck leaves. The speed of the car is 10 miles per…

A car leaves a town 20 minutes after a truck leaves. The speed of the car is 10 miles per hour greater than the truck. After traveling 100 miles the car overtakes the truck. Find the average speed of both vehicles.