1. 1st divide to half take the heavier out " W" e& n# O3 W# f/ |% e5.39.217.77:88982. 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) ( c' Y8 a. |7 f7 `& D公仔箱論壇3. Same method if is not equal on 2nd try.