maaaary

1. divide 6 and 6, both sides will not equal9 V8 a* r! F2 q3 t
2. take any side of the 6, divide then 3 and 3, again both sides will not equal
% i. J0 J9 l. g2 Q( {9 l- {3. take any 2 and weigh them公仔箱論壇/ i0 z  {* q2 P6 g! K8 G" M
if they equal, the one left is the ball.