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?

10 minutes

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