1. divide 6 and 6, both sides will not equalos.tvboxnow.com! Z3 J9 S- y/ A8 Z, c
2. take any side of the 6, divide then 3 and 3, again both sides will not equal $ i7 l2 K( n8 |5 g% y公仔箱論壇3. take any 2 and weigh them / T% o4 p5 F4 B% R公仔箱論壇if they equal, the one left is the ball.