After excluding stoppages, the speed of a bus is 60 kmph and after including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
In 1 hour the bus can travel 60km without including stoppages
To travel 1km it took 1min
In 1 hour the bus can travel 45km including stoppages
difference = 15kms
so it stopped for 15mins in 1hr.
so the answer is option D.
Create a FREE account and get: