Question

Question 79

$\frac{1}{8}$ of a number equal $\frac{2}{5}÷\frac{1}{20},$ what is the number?

Answer 1

Let the number be x.
Then$\frac{1}{8}$ of x is equal to $\frac{2}{5}÷\frac{1}{20}\Rightarrow \frac{1}{8}\times x=\frac{2}{5}\times 20[\because Reciprocalof\frac{1}{20}=20]\Rightarrow \frac{x}{8}=8\Rightarrow x=8\times 8\Rightarrow x=64$

Hence, the number is 64.