A train has an average speed of 45 km/hr without stoppages and 36 km/hr including stoppage time. Calculate the average stopping time (in minutes) per hour for the train.
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Answer:
12 mins per Hour
Explanation:
A train has an average speed of 45 km/hr without stoppages and 36 km/hr including stoppage time. Calculate the average stopping time (in minutes) per hour for the train.
Let say Distance = 180D km
average speed of 45 km/hr without stoppages
Time taken Without stoppage = 180D/45 = 4D hr
average speed of 36 km/hr including stoppages
Time Taken = 180D/36 = 5D hr
Stoppage Time = 5D - 4D = D km
Stoppage Time Per hour = D/5D = 1/5 Hr
= 12 mins per Hour
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