Johny went to his uncle's house, riding his bicycle at `15 (km)`/` h` and came back at `20 (km) `/` h`. What's his average speed for the whole journey?

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?

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?

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, if we take the one way distance as 240 km ?

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.

Rahim travelled 350 kilometres in a train and 150 kilometres in a bus. The average speed of the 'train was 70 km / h . The bus trip lasted 5 hours. What is the average speed of the entire trip?

Ratnagiri is 360 kilometres from Pavizhamala. Gopika's family travelled in a car at an average speed of 60 (km) / h . They managed only 45 (km) / h during the return trip. What is the average speed of the entire trip?

Ratnagiri is180 kilometres from Pavizhamala. Gopika's family travelled in a car at an average speed of 60 (km) / h . They managed only 45 (km) / h during the return trip. What is the average speed of the entire trip?

Abu boarded a bus at 7 in the morning. Usually the bus travels 30 (km) / h on average, to reach the railway station at 11. But since it was raining, the bus could run only 20 (km) / h on average. Abu got down from the bus at 9 , caught a car and reached the station at 11 itself. What was the average speed of the car?