Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 41 kmph. For how many minutes does the bus stop per hour?	Choose the most appropriate option:  A) 7 min  B) 8 min  C) 14.4 min  D) 10 min  E) 11 min
Due to stoppages, it covers 13 km less.   Time taken to cover 13 km =(13/54)x60 = 14.4 min   answer : 14.4 min
<result>C</result>
Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 41 kmph. For how many minutes does the bus stop per hour?