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In calatoria spre Taramul Viselor, Sophie a fost insotita de uriasul Mup. In timp ce Mup facea 4 pasi, Sophie facea 15 . Daca uriasul Mup a facut in total 20 de pasi, afla cati pasi a facut Sophie.


Răspuns :

4+4+4+4+4=20. (4+15)+(4+15)+(4+15)+(4+15)+(4+15)-20=(4+4+4+4+4)+15+15+15+15+15-20=75