1. divide 6 and 6, both sides will not equal 9 T5 [/ _+ W/ Q: |4 X \2. take any side of the 6, divide then 3 and 3, again both sides will not equal5.39.217.77:8898- b X6 D! w# S8 m. i! n) P
3. take any 2 and weigh them 5 v; w0 k" A; p9 T' z公仔箱論壇if they equal, the one left is the ball.