Question

If $4km$ on a map is represented by $1cm$, then $16km$ is represented by ______ $cm$

Answer 1

Compute the required value

Given $4km=1cm$ …$\left[1\right]$

Let $16km=ycm$ …$\left[2\right]$

Divide $\left[2\right]$ by $\left[1\right]$, we get,

$$\begin{gathered} \frac{16km}{4km}=\frac{ycm}{1cm} \\ \Rightarrow y=\frac{16}{4} \\ \Rightarrow y=4 \end{gathered}$$

Hence $16km$ is represented by $4cm$