Question

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 the train travel the next 100 km, so as to average 70 km/h for
the whole journey?​

Answer 1

Answer:

For a distance of 200km between Delhi and Agra, a train travelling at a speed of 50km/h for the first 100km, the train must travel at 116.67 km/h for the next 100km so that the average speed for the whole journey is 70km/h.