Excluding stoppages, the speed of a bus is 66 kmph and including stoppages, it is 55 kmph. For how many minutes does the bus stop per hour?

Excluding stoppages, the speed of a bus is 66 kmph and including stopp

1.	Excluding stoppages, the speed of a bus is 66 kmph and including stoppages, it is 55 kmph. For how many minutes does the bus stop per hour?
A.	15
B.	12
C.	18
D.	10
Answer» E.

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Excluding stoppages, the speed of a bus is 66 kmph and including stoppages, it is 55 kmph. For how many minutes does the bus stop per hour?

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