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 ?
A. 9 min
B. 10 min
C. 12 min
D. 20 min
Answer: Option B
Solution (By Examveda Team)
Due to stoppages, it covers 9 k less.Time taken to cover 9 km :
$$\eqalign{ & = \left( {\frac{9}{{54}} \times 60} \right){\text{ min}} \cr & = 10\min \cr} $$
This Question Belongs to Arithmetic Ability >> Speed Time And Distance
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