Question
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?
Answer: Option B
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Due to stoppages, it covers 9 km less.
Time taken to cover 9 km =\(\left(\frac{9}{54}\times60\right)min = 10min.\)
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