A motorist travels from A to B at a speed of `40 km//hr` and returns at a speed of 60 km/hr. His average speed will be:

A car travels from A to B at a speed of 20 km//hr and returns at a speed of 30 km//hr . The average speed of the car for the whole journey is

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 man travels at a speed of 20 Km/hr. and then returns at a speed of 30 Km/hr. His average speed of whole journey is

A man travels at a speed of 20 Km/hr. and then returns at a speed of 30 Km/hr. His average speed of whole journey is

A car travels from City A to City B at a speed of 40km/hr and from B to A at a speed of 60km/hr. What is the average speed of the car?

Einstein goes from Ahmedabad to Luknow at the speed of 40 km/hr and returned at the speed of 60 km/hr. The average speed of Einstien during the whole journey is :

Einstein goes from Ahemdabad to lucknow at the speed of 40 km/hr and returned at the speed of 60km/hr . The average speed of einstein during the whole journey is :

A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. His average speed for the whole journey in km/hr is (a) 35 (b) 37 (c) 37.5 (d) 40