1. 1st divide to half take the heavier out & }% a+ s) a1 g, m/ u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)! K; g/ n1 J( L) d8 L6 y: J
3. Same method if is not equal on 2nd try.