Question

Diameter of a wheel of a vehicle is 0.70 metre. How many rotations will a wheel complete in travelling a distance of 2.2 kilometre.
Please give workout and explanation.​

Answer 1

circumference of wheel = 2 \pi r2πr

Here,

Circumference of wheel = $22 ×\frac{22}{7}$×0.70.7

Circumference of wheel = 2×2.2

Circumference of wheel = 4.4

Now,

it will take $(\frac{22000}{4.4})$rotations to cover 22 km

it will take 5000 rotations to cover 22 km