On a 120 km track, a train travels the first 30 km at a uniform speed of 300 km/h. Calculate the speed with which the train should move rest of the track so as to get the average speed of 60 km/h for the entire trip?

Asked by Saloni Bansal | 17th Jul, 2013, 12:35: AM

Expert Answer:

Answered by  | 17th Jul, 2013, 10:42: PM

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