Question

40 pe 100 ori x =500 x=?

Answer 1

$\frac{40}{100}x=500$
$\frac{40x}{100}= \frac{500}{1}$
$40x = 500*100$
$40x = 50000$
$=>x= \frac{50000}{40}$
$=>x=1250$

Answer 2

(40/100)*x=500
[(40/20)/(100/20)]*x=500
(2/5)*x=500
(2/5)*(5x/5)=500
(2*5x)/(5*5)=500
10x/25=500
10x=500*25
10x=12500
x=12500/10
x=1250