A car covers the first half of the distance between two places at a speed of `40 kmh^(-1)` and second half at `60 kmh^(-1)` Calculate the average speed of the car.

A car covers first half of the distance between two places at a speed of 40 km//h and the second half at 60 km//h . Calculate the average speed of the car.

A car covers first half of the distance between two places at a speed of 40 km/hr and the second half at 60 km/hr. What is the average speed of the car?

A car covers the first half of the distance between two places at a speed of 40 kmh^(-1) and the second half at 60 kmh^(-1) the next 15 minutes,and then with a speed of 60 kmh ^(-1) .what is the average speed of the car ?

A car covers first half of the distance between two places at the speed of 40km/h . And 2nd half at 60km/h. What the average speed of the car ?

A car travels the first half of a distance between two places at a speed of 30 km// hr and the second half of the distance at 50 km//hr . The average speed of the car for the whole journey is

A car travels the first half of a distance between two places a speed of 30 km/hr and the second half of the distance a 50 km/hr. The average speed of the car for the whole journey is

A car travels the first half of a distance between two places a speed of 30 km/hr and the second half of the distance a 50 km/hr. The average speed of the car for the whole journey is

A train covers the first half of the distance between two stations at the speed of 40 km h^-1 and the other half 60 km h^-1 . Its average speed is