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O cutie de fulgi de porumb cantareste 725 de grame catvcantareste fulgii din doya cutii la fel de mari daca o cutie goala cantareste 25 de grame

Răspuns :

725g-25g=700g
700g x2 =1400g
doua cutii goale cantaresc:25x2=50 
fulgii de porumb cantaresc in total:700x2=1400