put 3 balls on each side,
6 [, ^2 K5 b# j- A8 x4 d( S# mif balance, we can prove that all 6 balls on the 天平 is normal,
3 q2 e6 U, `# |+ i' Vtvboxnow.comif not balance, we can prove that the 6 balls outside the 天平 is normal.
$ H) I. a a' }2 ]- Z7 Cthen use the proved-normal ball on one side and put the other ball on other side
; d' d2 F! D, L: J2 uTVBNOW 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。to determine the abnormal is heavy and light |