Question

Dau coroana!!!!!Ajutor!!!!!

Answer 1

Răspuns

900 ;

Explicație pas cu pas:

p = pretul initial ;

p-px(4/100) = p-p/25 = 24p/25 = pretul dupa prima ieftinire ;

(24p/25)-(24p/25)x(5/100) = (24p/25)-(24p/25)x(1/20) = (24p/25)-(6p/125) ;

(24p/25)-(6p/125) = 820,8 ; numitor comun 125 ;

120p-6p = 102600 ; 114p = 102600 ; p = 102600/114 = 900 lei