1. 1st divide to half take the heavier out ( h0 ~% t# i, K$ @; K公仔箱論壇2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for) - m! z6 H n0 z" `! Z d1 x5.39.217.773. Same method if is not equal on 2nd try.