4ursuleti..............7ponei=388
8 ursuleti.............6ponei=466 I :2
4ursuleti........7p0nei=388
4ursuleti.........3ponei=233
-----------------------------------------
/ 4p=155 => =>p=155:4=>p=38,75 lei costa un ponei
4u+7X38,75=388=>4u+271,25=388 =>4u=388-271,25 =>u=29,18 lei costa un ursulet