1. 1st divide to half take the heavier out 1 z9 D+ ?. Q% Q+ u- X4 q2. 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) ! `. x+ p e" g- D+ G4 h5.39.217.77:88983. Same method if is not equal on 2nd try.