Question

please solve this question please ​

Answer 1

Answer:

original number is 25

Step-by-step explanation:

let the number be X

According to question

$\frac{1}{5}ofx = x - 20 \\ \\ \frac{1}{5} \times x = x - 20 \\ \frac{x}{5} = x - 20 \\ 5(x - 20) = x \\ 5x - 100 = x \\ 5x - x = 100 \\ 4x = 100 \\ x = \frac{100}{4} = 25$