1. 1st divide to half take the heavier out: z, R: f" c. V4 W+ y) I
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)( b4 H4 ?( {8 k4 @! P) X1 k
3. Same method if is not equal on 2nd try.