[" 16.A motorcyclist drives from "A" to "B" with a uniform speed of "30kmh^(-1)" and "],[" retums back with a speed of "20kmh^(-1)" .Find its average speed."]

A motorcyclist drives from A to B with a uniform speed of 30 km h^(-1) and returns back with a speed of 20 kmh^(-1) . Find its average speed.

A motorcyclist drives from A to B with a uniform speed of 30 km h^(-1) and returns back with a speed of 20 kmh^(-1) . Find its average speed.

A motor cyclist drive from A to B with uniform speed of 30km/hour and returns back with a speed of 20 km/hour. Find the average speed.

A motorcylist drives from A to B with a unit speed of 30 kmh^-1 and returns back with a of 20 kmh^-1 . Find its average speed.

For a train that travels from one station to another at a uniform speed of 40 kmh^(-1) and returns to final station at speed of 60kmh^(-1) then its average speed is

A car travels 30 km at a uniform speed of 40 km/h and the next 30 km at a uniform speed of 20 km/h . Find its average speed.

A train travels from city A to city B with constant speed of 10 m s^(-1) and returns back to city A with a constant speed of 20 m s^(-1) . Find its average speed during its entire journey.

A car travels 30 km at a uniform speed of 40 km//h and the next 30 km at a uniform speed of 20 km//h . Find its average speed.

A car moves from A to B with a speed of 30 kmph and from B to A with a speed of 20 kmph. What is the average speed of the car ?