put 3 balls on each side, ' u2 j' j8 a2 Y7 c
if balance, we can prove that all 6 balls on the 天平 is normal,
* G& Y5 Z! U: N* y* d& V5 ITVBNOW 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。if not balance, we can prove that the 6 balls outside the 天平 is normal.
h/ N+ H& Q4 CTVBNOW 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
, b% Y6 v% k- C- Ltvb now,tvbnow,bttvbto determine the abnormal is heavy and light |