put 3 balls on each side,
; N% O2 E! h; l/ Q) F9 ^if balance, we can prove that all 6 balls on the 天平 is normal,
& u% [5 e/ D8 P4 Z: j5 }! R公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
6 a& k. s% f" H2 [TVBNOW 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
1 d1 {) @8 F& _/ R5 X" `to determine the abnormal is heavy and light |