Răspuns :
60dam=6 hm×5=30hm
50hm-30hm=20 hm
20hm=2000m
2000m÷20m=100 bucati
50hm-30hm=20 hm
20hm=2000m
2000m÷20m=100 bucati
50 hm = 5000 m
60 dam = 600 m
5 x 600 = 3000 m
Ramas 5000 - 3000 = 2000 m
2000 : 20 = 100 bucati de cite 20 m
Total = 100 + 5 (cele taiate prima data) = 105 bucati de sfoara