1. divide 6 and 6, both sides will not equaltvb now,tvbnow,bttvb- h! G+ G+ z' s" s3 V( k
2. take any side of the 6, divide then 3 and 3, again both sides will not equal公仔箱論壇0 u0 q0 K! L6 i
3. take any 2 and weigh them . U. j- ?/ e- H公仔箱論壇if they equal, the one left is the ball.