maaaary

1. divide 6 and 6, both sides will not equal公仔箱論壇8 [+ J* a+ p3 I# t3 g
2. take any side of the 6, divide then 3 and 3, again both sides will not equal5.39.217.77/ t/ ^. C+ q. Z1 g% W
3. take any 2 and weigh them
+ N2 \' J$ l) r4 Z* b; u: Otvb now,tvbnow,bttvbif they equal, the one left is the ball.