A passenger train left Miami and traveled east at an average

Last updated: 7/10/2022

A passenger train left Miami and traveled east at an average speed of 30 km/h. A freight train left sometime later traveling in the same direction at an average speed of 35 km/h. After traveling for 12 hours the freight train caught up with the passenger train. Find the number of hours the passenger train traveled before the freight train caught up. 22 hours 21 hours 19 hours 14 hours 16 hours