Question

If we subtract $\frac{1}{2}$ from a number and multiply the result by $\frac{1}{2}$, we get $\frac{3}{8}$. What is the number?

• A. 1
• B. 2
• C. 1.25
• D. 1.5

Answer 1

The correct option is C

1.25

Let the number be $y$.

$(y-\frac{1}{2})\times \left(\frac{1}{2}\right)=\left(\frac{3}{8}\right)$

$(y-\frac{1}{2})=\left(\frac{3}{4}\right)$

$y=\frac{3}{4}+\frac{1}{2}=\frac{3}{4}+\frac{2}{4}=\frac{5}{4}=1.25$