Răspuns :
2l.....3c......106kg
1l........8kg
2l........8kg×2=16kg
16kg.....3c....106kg
3c......90kg
1c.....30kg
R=1 cos 30kg
1l........8kg
2l........8kg×2=16kg
16kg.....3c....106kg
3c......90kg
1c.....30kg
R=1 cos 30kg
8 × 2 = 16 kg struguri ( in cele 2 lădițe )
106 - 16 = 90 kg struguri ( in cele 3 coșuri )
90 : 3 = 30 kg struguri ( intr-un coș )