Question

The diameter of a bicycle wheel is $28$ cm. What distance will it cover in $100$ revolutions?

Answer 1

Diameter $=28$ cm.

radius $=\frac{d}{2}=\frac{28}{2}=14$ cm

circumference = 1 revolution

$\therefore$ circumference = $2\pi r$

$=2.\frac{22}{7}.14$

$=88$ cm

The distance will cover in 100 revolutions = $100\times 88$

$=8800$ cm $=88$ m.