1. divide 6 and 6, both sides will not equal / t" v3 r) [, S' a5 e, _6 z公仔箱論壇2. take any side of the 6, divide then 3 and 3, again both sides will not equal . L% H& B8 f- N4 Q1 E5.39.217.763. take any 2 and weigh them ' c6 J( K( C7 L8 @9 ?. Yif they equal, the one left is the ball.