1. divide 6 and 6, both sides will not equalwww2.tvboxnow.com' t9 L* r0 M4 K7 ~$ `
2. take any side of the 6, divide then 3 and 3, again both sides will not equal公仔箱論壇$ Q# I. |6 W; Q( E& Y, ]
3. take any 2 and weigh them5 f' V* | U/ _2 r9 `! F
if they equal, the one left is the ball.