Excluding stoppages,the speed of the bus is 54kmph and
including stoppages,it is 9kmph. For how many minutes does the bus stop per hr
Select:
A) 12 min B) 11 min C) 13 min D) 20 min E) 50 min
Due to stoppages,it covers 45km less.   time taken to cover 45 km is [  45/54 *60= 
<gadget id="calculator">  45/54 *60</gadget>
<output>50</output>
50min   Answer is 50 min.
<result>E</result>
Excluding stoppages,the speed of the bus is 54kmph and
including stoppages,it is 9kmph. For how many minutes does the bus stop per hr