A train travels at a speed of 60 km/h for 0.52 h, at 30 km/h for the next 0.24 h and then at 70 km/h for the next 0.71 h. What is the average speed of the train ?

A train travels at 60 km//h for 0.50 h , at 30 km//h for the next 0.24 h and at 70 km//h for the next 0.71 h . What is the average speed of the train ?

A train travels 600 km in 5 hours and the next 900 km in 10 hours. What is the average speed of the train?

A man walks at a speed of 6 km h^-1 for 1 km and 8 km h^-1 for the next 1 km.What is the average speed for the walk fo 2 km?

A train has a speed of 60 km//h for the first one hour and 40 k/h for the next half hour. Its average speed in km//h is

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:

A train travels with speed 40 km h^(-1) for first 15 minutes and then 60 km h for next 15 minutes, hence its average speed during this time interval is 50 km h ^(-1).