Question

Find the value of $0.4\%$ of $1m$.

Answer 1

Finding the value of $0.4\%$ of $1m$.

As per given statement, $0.4\%$ of $1m$ will be expressed as,

$\Rightarrow 0.4\%\times 1m$

Converting $1m$ into $cm$, as $1m=100cm$, we get:

$$\begin{gathered} \Rightarrow 0.4\%\times 100cm \\ \Rightarrow \frac{0.4}{100}\times 100cm=\frac{0.4}{\cancel{100}}\times \cancel{100}cm=0.4cm \end{gathered}$$

We can express $0.4cm$into $mm$, as $1cm=10mm$

$\therefore 0.4cm=0.4\times 10mm=4mm$

Hence, $0.4\%$ of $1m=4mm$