A truck leaves Pensacola heading east at 50 mph. One hour later, a secondtruck leaves Pensacola heading east at 65 mph. How long will it take the second truck to overtake the first truck?

Let the time taken by the first truck = T

50T = 65[T - 1], solve for T

T = 4 1/3 hours - when the 2nd truck will pass the first.