put 3 balls on each side, " b- U: x5 n1 k# ^
if balance, we can prove that all 6 balls on the 天平 is normal,
4 Y( Z7 x4 }. w6 h* `4 oTVBNOW 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。if not balance, we can prove that the 6 balls outside the 天平 is normal.
. M6 v- U; ^6 Kthen use the proved-normal ball on one side and put the other ball on other side
5 J( v- E) R: @% [$ Rto determine the abnormal is heavy and light |