Question

$check \: is \: 5\% \: of \: a \: number \: less \: than \: \frac{1}{10} \: of \: the \: number$
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Answer 1

Answer:

5% of x = 1/10 of x

$\frac{5}{100} \times x = \frac{1}{10} - x \\ \\ \frac{1}{20} x = \frac{1}{10} - x \\ \frac{1}{20} x + x = \frac{1}{10} \\ \frac{21}{20} x = \frac{1}{10} \\ x = \frac{1}{10} \times \frac{20}{21} \\ x = 21$