Question
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?
Answer: Option C
SPEED OF THE BUS EXCLUDING STOPPAGES = 54 KMPH
SPEED OF THE BUS INCLUDING STOPPAGES = 45 KMPH
LOSS IN SPEED WHEN INCLUDING STOPPAGES = 54 – 45 = 9KMPH
=> 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
=DISTANCE/SPEED=9/54 HOUR=1/6 HOUR = 60/6 MIN=10 MIN
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SPEED OF THE BUS EXCLUDING STOPPAGES = 54 KMPH
SPEED OF THE BUS INCLUDING STOPPAGES = 45 KMPH
LOSS IN SPEED WHEN INCLUDING STOPPAGES = 54 – 45 = 9KMPH
=> 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
=DISTANCE/SPEED=9/54 HOUR=1/6 HOUR = 60/6 MIN=10 MIN
Was this answer helpful ?
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