Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph

• Time Distance

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

1. 9
2. 10
3. 12
4. 20

Answer

Due to stoppages, the bus covers 9 km less in 1 hour.

Time taken to cover 9 km = (9/54 x 60) = 10 minutes

The correct option is B.