Question

4/5 of a number is 20 less than the original number.Find the number.​

Answer 1

100 is the original number.

Hope it's helpful to you

Answer 2

According to Question :-

let the number be x

According to Question the eqⁿ will be :-

$\frac{4}{5} x = x - 20 \\ \\ \frac{4}{5} x - x = -20 \\ \\ \frac{4x - 5x}{5} = -20 \\ - x = -100 \\ x = 100$