A train travels some distance with a speed of `30 km//h` and returns with a speed of `45 km//h` . Calculate the average speed of the train.

A car travels a certain distance with a speed of 50 km//h and returns with a speed of 40 km//h . Calculate the average speed for the whole journey.

A car travels a certain distance with a speed of 50 km//h and returns with a speed of 40 km//h . Calculate the average speed for the whole journey.

A car travels a certain distance with a speed of 50 km/h and returns with a speed of 40 km/h. Calculate the average speed for the whole journey.

A bus travels a distance of 120km with a speed of 40km/h and returns with a speed of 30km/h .Calculate the average speed for the entire journey.

A car travels 100 km at a speed of 60 km/h and returns with a speed of 40 km/h. Calculate the average speed for the whole journey.

A car travels a distance AB at a speed of 40 km/hr and returns to A at a speed of 30 km/hr. What is the average speed for the whole journey?

A car travels a distance AB at a speed of 40 km/hr and returns to A at a speed of 30 km/hr. What is the average speed for the whole journey?

A car travels a distance A to B at a speed of 40km/h and returns to A at a speed of 30km/h (i)what is the average speed for the whole journey (ii)what is the average velocity ?