Răspuns :
12:4= 3 borcane
============
4 intr-un borcan
4 intr-un borcan
= 2 borcane pana acum
8+4= 12 kg
=> 3 borcane
============
4 intr-un borcan
4 intr-un borcan
= 2 borcane pana acum
8+4= 12 kg
=> 3 borcane