put 3 balls on each side, # }- l. S2 W+ @+ H
if balance, we can prove that all 6 balls on the 天平 is normal,
/ Y& q7 B8 ^& P, Z3 n& jTVBNOW 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. p- `- J( D, m" [; H |. v8 G P* ~7 S
then use the proved-normal ball on one side and put the other ball on other side 5.39.217.77:8898 G0 I; D# Z- ?/ O9 @6 t; h( N5 I2 R
to determine the abnormal is heavy and light |