Răspuns :
10 gaini ......50kg.....5 zile
6gaini........x kg.......7 zile
-----------------------------------
x=(50x6x7)/5x10
x=2100:50
x=42 de kilograme
6gaini........x kg.......7 zile
-----------------------------------
x=(50x6x7)/5x10
x=2100:50
x=42 de kilograme