put 3 balls on each side, ! m5 N# _7 L+ u* {: Uif 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。# Y& ]* s. t* Q: O2 j
if not balance, we can prove that the 6 balls outside the 天平 is normal. ( g. C$ g! Y- \9 L8 S- [; athen use the proved-normal ball on one side and put the other ball on other side & F5 d' u! A$ b+ z0 c
to determine the abnormal is heavy and light