Question

One lap of a running track measures $255\text{m}$. To run $10.0\text{km}$, how many laps should you run?

Answer 1

Finding the number of laps:

Given one lap of a running track measures $255m$.

$$\begin{gathered} \because 1km=1000m \\ \therefore 10km=10,000m \end{gathered}$$

$\because$ $255m$ $=$ $1$ Lap

$\therefore$ $1m$ $=\frac{1}{255}$ Laps

$\therefore$ $10,000m$ $=$ $\frac{1}{255}\times 10,000$

$=\frac{10,000}{255}$

$=39.22$

$\approx 40$ Laps

Therefore, $40$ laps are needed to run $10\text{km}$.