Question

If the diameter of a wheel of a truck is $98cm$, what is the What is the distance it will travel in $1500$ revolutions.

Answer 1

In one revolution, wheel covers a distance equal to its perimeter $=2\pi r$

$\Rightarrow$ In $1500$ revolutions, it covers $=1500\times 2\pi r$

$\{r=\frac{diameter}{2}=49cm\}=3000\times 2\times \frac{22}{7}\times 49$

$=924000cm$

$=9240m$.