Răspuns :
160-130=30lei(Cristina)
160-80=80lei(Mihaela)
160-(80+30)=160-110=50lei(Costin)
160-80=80lei(Mihaela)
160-(80+30)=160-110=50lei(Costin)
MI-Mihaela
CO-Costin
CR-Cristina
MI+CO+CR=160 lei
MI+CO=130 lei
CO+CR=80lei
130+CR=160
CR=160-130
CR=30 lei are Cristina
CO+30=80
CO=80-30
CO=50 lei are Costin
MI+50=130
MI=130-50
MI=80 lei are Mihaela
Raspuns:
Mihaela=80 lei
Costin=50 lei
Cristina=30 lei
verificare
80+50+30=160
CO-Costin
CR-Cristina
MI+CO+CR=160 lei
MI+CO=130 lei
CO+CR=80lei
130+CR=160
CR=160-130
CR=30 lei are Cristina
CO+30=80
CO=80-30
CO=50 lei are Costin
MI+50=130
MI=130-50
MI=80 lei are Mihaela
Raspuns:
Mihaela=80 lei
Costin=50 lei
Cristina=30 lei
verificare
80+50+30=160