Question

On a track a train travels the first 30km at a uniform speed of 30km/h. Calculate the speed with which the train should move rest of the track so average 60 km/h for the entire trip.​

Answer 1

Answer:

Hence, the train must travel the next 90 km at the speed of 90 km/hr so as to have an average of 60 km/hr for the entire journey.

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