1. divide 6 and 6, both sides will not equal公仔箱論壇. B+ h( D3 [1 d8 E- @* ?
2. take any side of the 6, divide then 3 and 3, again both sides will not equal 4 [1 i5 L7 V Z- h3 ytvb now,tvbnow,bttvb3. take any 2 and weigh themtvb now,tvbnow,bttvb- K5 ~! |3 s- l% u% T
if they equal, the one left is the ball.