1. 1st divide to half take the heavier out : Z% [7 ?* m: ?, h$ [& W2. 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) + Z7 P- e: [% x7 j$ r" `3. Same method if is not equal on 2nd try.