Tuesday, January 20, 2015

distance and speed

If we exclude stoppages, then the speed of a bus is 45 km/h and if we include stoppages, it is 36 km/h. For how much time does the bus stop per hour?




Answer:

in one hour the bus travels (45 - 36 = 9 km) less due to stoppage

The time taken to cover 9 km = 9 / 45 = 1/5 hour = 12 mins

So the bus stops 12 mins per hour

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