A passenger train leaves New York City traveling west at 130 km/hr. Three hours later, a freight train leaves the same station, traveling west at 160 km/hr. How many hours will each train travel before the second train catches up with the first?

Question

A passenger train leaves New York City traveling west at 130 km/hr.  Three hours later, a freight train leaves the same station, traveling west at 160 km/hr.  How many hours will each train travel before the second train catches up with the first?

anonymous · Answer

13

anonymous · Answer

130(x+3)=160x
x= time the second train traveled
x+3 = time the first train traveled