1. divide 6 and 6, both sides will not equal公仔箱論壇0 B# N+ H5 @ T0 Y
2. take any side of the 6, divide then 3 and 3, again both sides will not equal5.39.217.76: n6 F; I; J; {2 h* ?( V' e" V+ X
3. take any 2 and weigh them公仔箱論壇, a2 Y; t+ H; t4 b7 q$ D
if they equal, the one left is the ball.