Question

A bus has wheels of diameter 0.7 m. How many times must a wheel of the bus rotate for covering the distance of 22 km between two towns?

Answer 1

Step-by-step explanation:

Bus will cover the distance by rotating on wheels and in a single ratation wheel will cover 4.4 m

how let's see

$2\pi \times r \\ = 2 \times \frac{22}{7} \times .7 \\ = 4.4 {m} in \: \: a \: single \: rotation \\ how \: many \: rotations \: \\ \\ = 22km \\ = 22000m \\ = \frac{22000}{4.4} \\ = 5000 \: rotations$