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

The distance between Delhi and Agra is 200 km. A train travels the fir

1.	The distance between Delhi and Agra is 200 km. A train travels the first 100 km at speed of 50km/h. How fast must the train travel the next 100km so that the average speed for the whole journey is 70km/h?
Answer» The train must travel at a speed of 116.67 km/h for the next 100km so that the average speed for the whole journey is 70km/h. Time, speed, and distance are related using the equation: Distance = Speed× Time.