1. A travells a distance of 180 km in 5 hr. Find his speed in m/sec ?
2. A covers 32.5 km in 5 hours. Find the distance covered by him in 8 hours.
3. A person goes from A to B at a speed of 30 km/h & returns from B to A at a speed of 10 km/h. What is the average speed for the whole journey ?
4. A boy goes to a school at a speed of 3 km/h and returns at a speed of 2 km/h. If he takes 5 hr in all. find the distance between village & school.
5. A man goes from A to B at a speed of 20 km/h and returns at higher speed. If its average speed for the whole journey is 24 km/h, at what speed he returned ?
6. In a journey of 240 km, a man covers a distance of 150 km at a speed of 75 km/h, the next 60 km distance at a speed of 100 km/h and the remaining distance at the speed of 75 km/h. Find the average speed for the whole journey.
7. A man went from Delhi to Lucknow via Bareilly by car. The distance from Delhi to Bareilly is \(\frac{3}{4}\) times the distance from Bareilly to Lucknow. the average speed from Delhi to Bareilly is \(\frac{3}{2}\) times the average speed from Bareilly to Lucknow. If the average speed for the entire journey was 56 km/h. What was the average speed from Bareilly to Lucknow ?
8. A car during its journey travells 30 minutes at a speed of 20 km/h, another 12 minutes at a speed of 50 km/h and 1 hour at a speed of 48 km/h. Find the average speed of the car ?
9. A starts his journey from Delhi to Jaipur and simultaneously B starts from Jaipur to Delhi. After crossing each other they finish their remaining journey in \(9\frac{4}{5}\) hours & 5 hours respectively. What is A’s speed if B’s speed is 35 km/h ?
10. Two persons covers the same distance at a speed of 40 km/h & 30 km/h respectively. Find the distance travelled if one person takes 15 min more than the other.