1. divide 6 and 6, both sides will not equal5.39.217.77# `# L; A2 b7 }; u$ C
2. take any side of the 6, divide then 3 and 3, again both sides will not equal公仔箱論壇, C- v/ r. j S( N( h# X. ~& y; D
3. take any 2 and weigh themtvb now,tvbnow,bttvb8 U9 E+ D; ?! Z# L2 s. G6 q) A; g( P4 E
if they equal, the one left is the ball.