1. divide 6 and 6, both sides will not equal ; q; U" j0 ^. A( }+ H8 C. }2. take any side of the 6, divide then 3 and 3, again both sides will not equal 5 ^# ?( ~' Y- U公仔箱論壇3. take any 2 and weigh them公仔箱論壇. F* M. [7 D$ [6 Y3 O
if they equal, the one left is the ball.