1. divide 6 and 6, both sides will not equal公仔箱論壇8 g3 r" T6 W7 T o# |0 n7 B
2. take any side of the 6, divide then 3 and 3, again both sides will not equal $ e! O6 H! ]( w9 k, g2 m1 v: H公仔箱論壇3. take any 2 and weigh them 3 }: q4 _5 w& T h4 A! Qif they equal, the one left is the ball.