1. 1st divide to half take the heavier out 7 M# s, R$ v; o) |3 }. i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)tvb now,tvbnow,bttvb' v3 H9 q$ H% R5 Z( |. b: T G( c
3. Same method if is not equal on 2nd try.