Mihaela= a Alexandra=b Costin=c x=suma de bani
a+b+c=x
a+b= 324 lei 162(mihaela) 162(Alexandra)
b+c=362 lei 163( Alexandra) 163( Costin)
a+c= 321 lei 160.5 (Mihaela) 160.5 (Costin)
⇒ 322.5+325+323.5=971
Mihaela a pus 322.5 (lei)
Alexandra a pus 325 (lei)
Costi a pus 323.5 (lei)
Totii au pus in total 971 (lei)
Sper sa iti fie de folos