1. divide 6 and 6, both sides will not equal 3 E+ p1 A% G$ C: k1 O, R2. take any side of the 6, divide then 3 and 3, again both sides will not equal : f5 G& _4 ~! u% k# O$ R# Itvb now,tvbnow,bttvb3. take any 2 and weigh them ! J9 H" O5 K& ]4 z; b公仔箱論壇if they equal, the one left is the ball.