Question 2

# 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 ?

Solution

calculation based on per hour travel of the bus

due to stoppages, it covers 9km less i.e (54 - 45)

so time taken to cover 9km = ( $$\frac{9}{54}\times60$$ )mins = 10 mins