a bus takes 3 hours to covers a distance of 225 km .there is another bus whose speed is 15 km/hrs more than that of first bus.how long will it take to cover the same distance.ans is 2.5 hrs pls solve it step by step
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The time taken by the first bus A = 3 hours
The distance the bus covers = 225 km
Speed = distance/time
= 225/3 = 75km/hour
So the speed of another bus B = 75km/hr + 15km/hr
= 90km/hr
The distance travelled by the bus B = 225km
Speed= Distance/time
Time = distance/speed
= 2.5 hours
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