3kg mere.........2kg pere..........34lei /x3
2kg mere.........3kg pere..........36lei /x2
9kg mere...........6kg pere............102lei
4kg mere...........6kg pere..............72lei
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5kg mere............/ ............................30lei
1kg mere=30lei: 5kg
1kg mere=6 lei
7kg mere= 6leix 7=42lei