Question:
If 16% of a number is 72, find the number.
Solution:
Let the number be $x$.
$16 \%$ of $x$ is 72 .
$\Rightarrow \frac{16}{100} \times x=72$
$\Rightarrow 16 x=72 \times 100$
$\Rightarrow 16 x=7200$
$\Rightarrow x=\frac{7200}{16}=450$
$\therefore$ The required number is 450 .
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