Question

distance between two stations x and y is 778km/h.the train covers the journey from x to y at a speed of 84 km/h and returns to x at a speed 56 km/ h find the average speed of train in (km/h)​

Answer 1

Answer:

The average speed of train in (km/h)​ is $63.77 km/hr$

Step-by-step explanation:

Distance between two stations x and y is 778km.

The train covers the journey from x to y at a speed of 84 km/h.

Time taken by the train to cover the distance=$\frac{778}{84} =10.5 hour$

He returns to x at a speed 56 km/ h.

so time taken to return=$\frac{778}{56} =13.9 hours$

Then the average speed of train in (km/h)​=$\frac{tootal Distance}{total time} \\ \\ =\frac{1556}{24.4} =63.77 km/hr$