1. 1st divide to half take the heavier out公仔箱論壇& q5 A ^3 K" T8 u
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) ; u5 ^) `2 l* o5 K6 _& o8 ^* G公仔箱論壇3. Same method if is not equal on 2nd try.