Question

If u subtract $\frac{1}{2}$ from a no. and multiply the result by $\frac{1}{2}$ you get $\frac{1}{8}$. What is the no.

Answer 1

Let the number be x.
According to question,
$(x-\frac{1}{2})\times \frac{1}{2}=\frac{1}{8}$
Solving for $x\Rightarrow \frac{x}{2}-\frac{1}{4}=\frac{1}{8}\Rightarrow \frac{x}{2}=\frac{1}{8}+\frac{1}{4}\Rightarrow \frac{x}{2}=\frac{1}{8}+\frac{2}{8}\Rightarrow \frac{x}{2}=\frac{(1+2)}{8}\Rightarrow x=\frac{3}{8}\times 2\Rightarrow x=\frac{6}{8}=\frac{3}{4}$.
The number is $\frac{3}{4}$