Question

If $I$ add my number to a quater of my number, $I$ get $12\frac{1}{2}$. What is that number.

Answer 1

let my number $=x$

Quater of my numbers $=\frac{x}{4}$

according to problem, $=x+\frac{x}{4}=12\frac{1}{2}$

$=\frac{5x}{4}=\frac{25}{2}$

$x=\frac{25}{2}\times \frac{4}{5}$

$x=10$

$\therefore$ my numbers $=x=10$