3 cornuri....5 paini....2300 g/×4
4 cornuri....2 paini.....1200 g/×3
12 cornuri....20 paini....9200 g
12 cornuri.....6 paini......3600 g
20-6= 14 paini
9200-3600=5600 g ( 14 paini)
5600:14=400 g o paine
400×5=2000g( 5 paini)
2300-200=300g (3 cornuri)
300:3=100 g un corn
400g+100g=500g
