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sabina, bianca si daria aveau in colectia lor 120,210 respectiv 180 de servetele.Sabina a mai adaugat 1 supra 4, bianca a mai adaugat 2 supra 7 si daria a mai adaugat 3 supra 9 din numarul de servetelepe care il avea fiecare in colectie.Cate servetele au cele trei fetite impreuna?va rog raspundeti urgent!!!

Răspuns :

Sabina adauga 120:4=30 servetele Sabina are 120+30=150 servetele Bianca adauga 210:7x2=30x2=60 servetele Bianca are210+60=270 servetele Daria adauga 180:9x3=20x3=60 servetele Daria are 180+60=240 servetele In total au 150+270+240=660 servetele