Question

If you subtract 40 from a number, the difference will be 1/3 of the original number. Find the number.

Answer 1

let number be x .

$x - 40 = \frac{1}{3} x$

$- 40 = \frac{1}{3} x - x$

$- 40 = \frac{1}{3} - \frac{3}{3} x$

$- 40 = \frac{ - 2}{3} x$

$40 \times \frac{3}{2} = x$

$60 = x$