21.
In a kilometre race, A beats B by 100 m and B beats C by 150 m. In the same race, by how many metres does A beat C ?

22.
A and B can cover a 200 m race in 22 seconds and 25 seconds respectively. When Av finished the race, then B is at what distance from the finishing line ?

23.
In a 1000 m race, A can beat B by 100 m. In a race of 400 m, B can beat C by 40 m. By how many metres will A beat C in a race of 500 m ?

24.
In a 200 m race, A beats B by 35 m or 7 seconds. A's time over the course is-

25.
In a 800 metre race, A defeated B by 15 seconds. If A's speed was 8 km/hr, the speed of B was -

28.
An athlete runs 8 times around a circular field of radius 7 m in 3 minutes 40 seconds. His speed (in km/h) is: