1. 1st divide to half take the heavier out # m% p6 Y! ?+ e; d0 I. n; _5.39.217.762. 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 R4 {/ `8 B: \ A8 p$ q- t5 {6 N
3. Same method if is not equal on 2nd try.