kochipai

1. 1st divide to half take the heavier out公仔箱論壇7 X: r; @% H( K/ D" R
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: `$ a/ y- G' g" N& h0 i/ }
3. Same method if is not equal on 2nd try.