Excluding stoppages, the speed of a bus is 50 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?  Choose the correct choice from the following options:  A) 7 min  B) 6 min  C) 9 min  D) 10 min  E) 11 min
Due to stoppages, it covers 5 km less.   Time taken to cover 5 km =(5/50)x60 = 6 min   answer : 6 min
<result>B</result>
Excluding stoppages, the speed of a bus is 50 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?