Question

Salut am nevoie de acest exercitiu va rog dau coroana si rate 5 Urgent​

Answer 1

Fie x numarul cerut

$x \times \frac{2}{5} = 50 \\ x = 50 \div \frac{2}{5} \\ x = 50 \times \frac{5}{2} \\ x = 25 \times 5 \\ x = 125$