93. 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?

By /
[A]. 9
[B]. 10
[C]. 12
[D]. 20
✅ The correct answer is option B.
Due to stoppages, it covers 9 km less.

Time taken to cover 9 km =

9
x 60
min
= 10 min.

54

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