A train without stoppage travels with an average speed of 72 km/h and with the stoppage, it travels with an average speed of 60 km/h. For how many minutes does the train stop on an average per hour?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 10
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Concept |
Understanding |
Application |
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Time of rest per hour is equal to the difference in average speed divided by the speed without stoppage. |
Without stoppage average speed = 72 km/h With stoppages average speed = 60 km/h |
Required time = [(72 - 60)/72] × 60 = 720/72 = 10 So, The train stops on an average 10 minute/hour |