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?

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The speed of the bus excluding stoppages is 54 kmph and including stoppages is 45 kmph. This means that the bus covers 9 km less every hour due to stoppages (54-45 = 9 km).

Now, if the bus travels at a speed of 54 kmph, it means that it covers 54 km in 60 minutes. Therefore, to cover 9 km, the time taken would be (9/54)*60 = 10 minutes.

So, the bus stops for 10 minutes every hour.

The speed of the bus without stoppages is 54 kmph, and with stoppages is 45 kmph. This means that the bus covers 9 km less every hour due to stoppages (54-45 = 9 km).

Now, if the bus travels at a speed of 54 kmph, it would take the bus (60/54) = 1.11 minutes to cover 1 km.

Therefore, to cover 9 km, it would take the bus 1.11 * 9 = 10 minutes.

So, the bus stops for 10 minutes every hour.