Question 84

Excluding stoppages, the speed of a bus is 72 kmph and including stoppages, it is 60 kmph. For how many minutes does the bus stop per hour?

Solution

In 1 hour the bus can travel 72km without including stoppages

To travel 1km it took 60/72=5/6 min

In 1 hour the bus can travel 60km including stoppages

difference = 12kms

so it stopped for 12*5/6=10mins in 1hr.

so the answer is option D.

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