1. divide 6 and 6, both sides will not equal , ?" E; L9 ]" V0 ^公仔箱論壇2. take any side of the 6, divide then 3 and 3, again both sides will not equal / e o6 {( }; z) Dtvb now,tvbnow,bttvb3. take any 2 and weigh them ) d; N' @; l0 |! t; ^( Zif they equal, the one left is the ball.