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 travels half the distance with constant velocity of 40 kmph and the remaining half with a constant velocity 60 kmph.The average velocity of the car in kmph is

A vehicle did the first 120 kilometres of a trip at an average speed of 30 (km) / h and the next 120 kilometres at 20 (km) / h . What is the average speed of the entire. trip?

A car travels with a speed of 25 m//s for 2 minutes and then with 20 m//s for 1 minute.Calculate the total distance travelled by the car.

Babu went to Mananthavady by bus to see his friend. The average speed of the bus was 40 (km) / h . He came back in' a car, at an average speed of 60 (km) / h . What is the average speed of the entire trip?