Răspuns :
Regula de 3 simplă.12 muncitori⇒6 zile
-1 muncitori⇒[tex] \frac{12x6}{18} [/tex] = [tex] \frac{12x1}{3} [/tex] = 4 zile
R:4 zile
-1 muncitori⇒[tex] \frac{12x6}{18} [/tex] = [tex] \frac{12x1}{3} [/tex] = 4 zile
R:4 zile