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?
Option:
A. 10
B. 12
C. 9
D. 14
Answer: A . a
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Justification:
Due to stoppages, it covers 9 km less.
Time taken to cover 9 km = (9/54) * 60 min = 10 min
