A train's average speed is 72 km/h but is reduced to 60 km/h due to stoppages. For how much time does the train stop in an hour?
Answer & explanation
Correct answer: option 1
Given:-
Average speed without stoppages = 72 km/h
Average speed with stpppage = 60 km/h
Time of rest per hour equal to the difference in average speed divided by the
speed without stoppage.
Required time = \(\frac{72 - 60}{72}\) × 60 = 10 minutes
So, A train stops on an average 10 min/h