Question

What percent is $16cm$ of $2metres$?

Answer 1

To convert a fraction into percentage,multiply it by $\mathbf{100}$

$1centimetre=\frac{1}{100}metres$

So $16cm=16\times \frac{1}{100}m$

Percentage of $16cm$ out of $2metres$$=\left(\frac{{\displaystyle \raisebox{1ex}{$16$}\!\left/ \!\raisebox{-1ex}{$100$}\right.}}{2}\times 100\right)\%$

$=\left(\frac{16}{100}\times \frac{1}{2}\times 100\right)\%$

$=8\%$

Hence $8\%$ of $2metres$is $16cm$.