1. divide 6 and 6, both sides will not equal5.39.217.77! `5 R) C. L' f% C4 o4 z$ U) h
2. take any side of the 6, divide then 3 and 3, again both sides will not equal" h8 w7 v1 h' ~0 b. T2 g9 P# M
3. take any 2 and weigh them ; W' R' w3 V+ h5 l1 S公仔箱論壇if they equal, the one left is the ball.