Excluding stoppages, the speed of a bus is 70 km/hr and including stoppages, it is 40 km/hr. For how many minutes does the bus stop per hour?	Choose the correct choice: A) 118 min B) 10 min C) 18 min D) 16 min E) 25 min
Due to stoppages, it covers 30 km less.   Time taken to cover 30 km = 30/70 * 60   = 25 min.   Answer:25 min
<result>E</result>
Excluding stoppages, the speed of a bus is 70 km/hr and including stoppages, it is 40 km/hr. For how many minutes does the bus stop per hour?