A passenger train left station A at 6:00 P.M. Moving with the average speed 45 mph, it arrived at station B at 10:00 p.m. A transit train left from station A 1 hour later than the passenger train, but it arrived at the station B at the same time with the passenger train. What was the average speed of the transit train?
Passenger Train
180 = 3r
Divide each side by 3
r = 60 miles per hour
Passenger Train
- 45 miles per hour and it got there in 4 hours.
- D = Distance
- r = rate
- t = time
- D = rt
- D = 45(4)
- D = 180 miles from Station A to Station B
- It has to go the same distance, 180 miles, so D = 180
- It made it there in 3 hours. This is r
- We want to solve for t
180 = 3r
Divide each side by 3
r = 60 miles per hour