August 2018 1 17 Report
Zad 1 .
skoszona trawa ma wilgotnosc 60% a siano 15% ile kilogramow siana otrzymamy z jednej tony trawy??

zad2
jubiler stopil 492g zlota drugiej proby (750 promili) i 732 g zlota szostej proby (333 promili) ile promili stanowi zloto w tym stopie???

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