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Daca mama ar pune sucul de rosii in sticle de 900 ml. ar umple 18. De câte sticle are nevoie pentru a pune scul in sticle de 450ml.​

Răspuns :

Răspuns:

900ml.....................18sticle

450ml....................?sticle

900ml/18= 50 ml o sticla

450:50=9 sticle