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 ?	Choose the correct option:
A) 8 minutes
B) 10 mintues
C) 12 minutes
D) 14 minutes
E) 15 minutes
Explanation:   Due to stoppages, it covers 9 km less.   Time taken to cover 9 km = (9/54) hour   = (1/6)*60= 
<gadget id="calculator">(1/6)*60</gadget>
<output>10</output>
10 minutes   Answer: 10 mintues
<result>B</result>
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 ?