Question

The diameter of the front and rear wheels of a tractor are 80cm and 2m respectively. The no of revolutions that rear wheel will make to cover the distance which the front wheel cover in 1400 revolution is ________

Answer 1

3500 is the answer.buddy verify it doing urself.this is an easy question

Answer 2

Radius of the front wheel = $\sf{80cm = \frac{80}{100} m = \frac{4}{5} m}$

Circumference of the front wheel = $\sf{2\pi \times \frac{4}{5}m = \frac{8π}{5} m}$

Distance moved by it in 1400 revolutions = $\sf{2π \times 2m = 4π m}$

Number of revolutions made by the rear wheel=$\sf{ \frac{2240π}{4\pi}}$

= $\large\sf{560}$