put 3 balls on each side,
! s( J9 J. j$ D5 P* F0 F5.39.217.77:8898if balance, we can prove that all 6 balls on the 天平 is normal, 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。$ {6 o( P; d4 m- |2 Z5 [
if not balance, we can prove that the 6 balls outside the 天平 is normal.公仔箱論壇6 m3 J0 M, T. ^- R* {
then use the proved-normal ball on one side and put the other ball on other side
& l1 U8 M2 [8 b2 G+ 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。to determine the abnormal is heavy and light |