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ODP:C
13.
20zl-12,7zl=7,3zl
5zl,2zl,20gr,10gr
ODP:A
14.
Ksiazka wazy: 0,55kg
Pudelko wazy: 0,4kg
0,55kg*16=8,8kg- tyle waza ksiazki
8,8kg+0,4kg=9,2kg- tyle waza ksiazki z pudelkiem
ODP:B