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CBSE Class 9 Answered

On a 120 km track, a train travels the first 30 km at a uniform speed of 30 km/h. Calculate the speed with which the train should move on the rest of the track so as to get the average speed of 60 km/h for the entire trip.
Asked by Topperlearning User | 13 May, 2014, 12:44: PM
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Answered by | 13 May, 2014, 02:44: PM

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