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) 22  B) 37  C) 10  D) 28  E) 27
speed of the bus excluding stoppages = 54 kmph   speed of the bus including stoppages = 45 kmph   Loss in speed when including stoppages = 54 - 45= 
<gadget id="calculator">54 - 45</gadget>
<output>9</output>
9kmph=&gt; In 1 hour, bus covers 9 km less due to stoppages   Hence, time that the bus stop per hour = time taken to cover 9 km   =distancespeed=954 hour=16 hour = 606 min=10 min   Answer :10
<result>C</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?