1. 1st divide to half take the heavier out8 a! g$ \' K8 F% y# D. |
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)公仔箱論壇$ p/ _5 a' x2 j' L# S' Q
3. Same method if is not equal on 2nd try.