1. divide 6 and 6, both sides will not equal 2 }* @. b/ A' l; u1 ltvb now,tvbnow,bttvb2. take any side of the 6, divide then 3 and 3, again both sides will not equal ' Z1 }$ V/ r' T2 ]9 _3. take any 2 and weigh them " ^, ^. l( s. x Y2 C3 F8 y公仔箱論壇if they equal, the one left is the ball.