Question Detail
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 ?
- 8 minutes
- 10 mintues
- 12 minutes
- 14 minutes
Answer: Option B
Explanation:
Due to stoppages, it covers 9 km less.
Time taken to cover 9 km = (9/54) hour
= (1/6)*60 minutes
= 10 minutes
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Hope 9 years ago
hi hold per kyuuuu
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veeru 11 years ago
superb
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hemanth 11 years ago
Please elaborate the answer
mastguru 11 years ago replied
Hello Hemanth,
As given, normal speed of bus is 54 Km/Hour.
When bus stop on stoppages then average speed become 45 km/hr.
Difference is 54-45 = 9 km/hr
So when bus stops on stoppages then it travel 9 km less in an hour. right ?
Now we need to calculate time taken by bus to travel 9 km.
Time = Distance/Speed
= 9/54 = 1/6 hour or (1/6) * 60 minutes
= 10 minutes.
Please let me know if any confusion.