1. 1st divide to half take the heavier outwww2.tvboxnow.com9 R# k* {0 z7 X+ |
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) 5 M0 B1 s! [& `7 Y1 p公仔箱論壇3. Same method if is not equal on 2nd try.