Question

Daca 10% dintr-un numar reprezinta 50 %, atunci numarul este...

Answer 1

$\frac{10x}{100}= \frac{50}{100}$
$10x= \frac{100*50}{100}$
10x=50
x=5

Answer 2

10x/100 = 50/100
x = 100 * 50  
       10 * 100
x = 5