3 cornuri.....5 pâini.....2300g |x4
4 cornuri.....2 pâini.....1200g |x3
12 cornuri...20 pâini....9200g
12 cornuri...6 pâini....3600g
20-6=14 pâini...9200-3600=5600g
1 pâine....5600:14=400g
2 pâini....800g
4cornuri............................1200-800=400g
1corn..................................400:4=100g
1 corn+ 1 paine=100g+400g=500g