Question

Ryan and Mary are both travelling by train.
Ryan's train travels 80 km in 50 minutes.
Mary's train travels 270 km.
It leaves at 13:10 and arrives at 15:25.
Work out the difference, in km/h, between the average speed of their trains.

Answer 1

Answer:

average speed is distance/time

1. 80km/50 minutes (0.833 hour)= 96km/hour

2. 270km/(time between 13:10 and 15:25 (2hr 15mins)) = 120km/hr

3. difference is 120km/hr - 96km/hr = 24km/hr faster