1. A car can cover 600 km in 8 hours. If the speed is increased by 25 kmph, how much time does the car take to cover 800 km?

2. Gopal travelled first half of his journey time at an average speed of 40 kmph and the remaining half at an average speed of 50 kmph. Find his average speed (in kmph) for the journey.

3. Ram takes 2 hours to complete a certain distance, Shyam has a speed 4/3 times that of Ram. How much time will he take to complete the same distance?

4. A gives B a start of 10 m or 2 seconds in a 100 m race. Find A’s speed if both finish simultaneously.

5. Pavan travelled for 11 hours. He covered the first half of the distance at 30 kmph and the remaining half of the distance at 25 kmph. Find the distance travelled by Pavan (in kms).

6. In a 600 m race, A gives B a start of 200 m and beats him by 120 m. Find the ratio of the speeds of A and B.

7. The downstream speed of a boat is 2 kmph more than its upstream speed. Find the speed of the stream.

8. The ratio of the speeds of A and B is 3 : 7. If B takes 20 minutes less than A to cover a certain distance, then what is the time taken (in minutes) by A to cover the distance?

9. If the speed of a train is doubled, it would have crossed a 800 m long bridge in 40 seconds. Find the usual speed (in m/sec) of the train given that the length of the train is 200 m.

10. A car reaches its destination one hour late, if it travels at 80 kmph. If its speed was 100 kmph which is its usual speed, it reaches on time. Find the usual time (in hours) it takes to travel to its destination.