Răspuns:
4/16=p/100→p=100×4/16=25%
x % din 16 = 4
[tex] \frac{x}{100} \times 16 = 4 \\ \frac{16x}{100} = 4 \\ 16x = 4 \times 100 \\ 16x = 400 \\ x = 400 \div 16 \\ x = 25[/tex]
x=25%
