put 3 balls on each side,
- j/ v# T/ t1 z# {0 Q1 y$ {$ i公仔箱論壇if balance, we can prove that all 6 balls on the 天平 is normal,
7 ?* X0 m1 G; g2 o公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
7 p0 n( c0 g: o+ S8 j tTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。then use the proved-normal ball on one side and put the other ball on other side
8 L7 B; Y6 p% P9 W, jto determine the abnormal is heavy and light |