put 3 balls on each side,
5 H, i7 K8 X7 ^8 y' t" A2 Oif balance, we can prove that all 6 balls on the 天平 is normal,
- i3 d* _+ `. {/ d0 O公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
, ?, _( A! l! ?* bthen use the proved-normal ball on one side and put the other ball on other side . K7 [# O6 H2 s( c2 u9 z1 ^: l
to determine the abnormal is heavy and light |