240-p/100*240=(1200-12p)/5 pretul dupa prima redicere (am simplificat 100 cu 240 apoi adus la acelasi nimitpr comun) ;;(1200-12p)/5-10/100*(1200-12p)/5=183,6;; inmultim si simplificam =>(1200-12p)/5-24+6p/25=1846/10 eliminam numitorul (nc=50) =>12000-120p-1200+12p=9180 =108p=1610 => p=15%