1. 1st divide to half take the heavier out5.39.217.763 k6 ^; l7 X, c; q
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)5.39.217.76+ g! Q- g& _: `1 ~, I
3. Same method if is not equal on 2nd try.