On a 120 km long railway track, a train travels thre first 80 km at a uniform speed of 160 km/h. Calculate the speed with which the train should move rest of the track so as to get the average speed of 80 km/h for the entire trip.

Asked by gpnkumar0 | 21st Sep, 2016, 06:37: AM

Expert Answer:

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Answered by Romal Bhansali | 21st Sep, 2016, 09:29: AM