22. Suresh travelled 1200 km by air which formed (2/5) of his trip. One third of the whole trip, he travelled by car and the rest of the journey he performed by train. The distance travelled by train was:

23. If a man covers 10.2 km in 3 hours, the distance covered by him in 5 hours is:

24. A and B are two towns. Mr. Farugui covers the distance from A to B on cycle at 16 km/hr. However, he covers the distance from B to A on foot at 9 km/hr. His average speed during the whole journey is: