The distance between Delhi and Agra is 200 km. A train travels the first
Channel: Doubtnut
Date: 2020-01-26

The distance between Delhi and Agra is 200 km. A train travels the first 100 km at a speed of 50 km/h. How fast must of the train travel the next 100 km, so as to average 70 km/h for the whole journey ?