a train travells delhi to agra first 100km with speed of50kmper hour and its average speed is 70 km per hour how fast must. train travel the next 100 km
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The distance between Delhi and Agra is 200km. A train travels the first 100km at a speed of 50km/h. How fast must the train travel three times for the next 100km, to get an average of 70km/h for the whole journey? To get average 70kmph for a distance of 200km, total time is 200/70 hrs
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