Latest self Aptitude Question SOLUTION: Q. 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?

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Q. 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?

(11 years ago)

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sadhikbhasha  (11 years ago)

due to stoppages ,it covers 9km less

Time taken to cover 9km=((9/54)*60)=10min

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Prayosha panchal  (11 years ago)

let distance is x.then without stoppage, the time taken to cover a distance x/54
similarly with stoppage, time=x/45. taking ratio of both,45/54=5/6 so,
5/6 so, every 5 hour there is one extra hour.
5/6=1/1.2 so, in one hour there is extea 0.2hour=12 minutes
12mins= ans.

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shaswata tripathy  (11 years ago)

ans is 10 mins.
as we know excluding stoppages its 54 kmph so
54 km can be traveled in 1 hour
so 1 km can be travelled in 1/ 54 hour
45 km can be travelled in 45 / 54 hour or (45/54) * 60 = 50 min
so it stops for 60 - 50 = 10 mins

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