The circumference of the tyre of radha's bicycle is 2.4m . She took part in a bicycle race of 1 km. when she had covered 700 m the tyre burst. If she had to finish the race, how many more times the wheel must go round?

1 km=1000 m

So, 1000 m-700 m=300 m. The circumference of the tyre was 2.4 m. To, know the must revolutions taken by the tyre we have to divide 300 by 2.4 as circumference was 2.4. Now its easy 300/2.4=125. That mean the revolutions taken by the tyre are 125.