put 3 balls on each side,
3 g* {% x# l4 U' f* n5 [os.tvboxnow.comif balance, we can prove that all 6 balls on the 天平 is normal, # i" N2 q; U3 u1 f& q; T
if not balance, we can prove that the 6 balls outside 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。( w- ]6 A3 m3 D' u5 e
then use the proved-normal ball on one side and put the other ball on other side tvb now,tvbnow,bttvb% V7 c) A" {5 m
to determine the abnormal is heavy and light |