A car driver travels from the planes to a hill station . Which are 200 km apart at an average speed of 40 km/h . In the return trip he covers the same distance at an average speed of 20 km/h . The average speed of the car over the entire distance of 400 km is

A car covers a distance in 40 minutes with an average speed of 60 km per hour. The average speed to cover the same distance in 30 minutes is

An automobile driver travels from plane to hill station 100km distance at an average speedof 30km per hour.He then makes the return trip at average speed of 20km per hour.What is his average speed over the entire distance (200km)?

What is the average speed of the car if covers 200km in 5h ?

A car travels first half distance between two places with a speed of 40 km/h and the rest of the half distance with a speed of 60 km/h. The average speed of the car is

An automobile driver travels from plane to a hill station, a distance of 120 km at an average speed of 30 km per hour. He then makes the return trip at an average speed of 25 km per hour. He covers another 120 km distance on plane at an average speed of 50 km per hour. His average speed over the entire distance of 360 km will be :

An automobile driver travels from plane to a hill station, a distance of 120 km at an average speed of 30 km per hour. He then makes the return trp at an average speed of 25 km per hour. He covers another 120 km distance on plane at an average speed of 50 km per hour. His average speed over the entire distance of 360 km will be :

A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes