Question

madhurika thought of a number,doubled it and added it 20 to it.On dividing the resulting number by 25,she gets 4.what is the number?​

Answer 1

$let \: the \: Number \: be \: x$

$Double \: the \: number =2x$

$Adding \: 20 = 2x+20$

$It \: gives \: 4 \: when \: divided \: by \: 25$

$2x + 20 = 4 \times 25$

$2x + 20 = 100$

$2x = 100 - 20$

$2x = 80$

$x = \frac{80}{2}$

$x = 40$