put 3 balls on each side,
0 E1 G7 X+ p, b! y9 a2 O! qif balance, we can prove that all 6 balls on the 天平 is normal,
1 p, Y1 w! \# o' Z3 _ T [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。if not balance, we can prove that the 6 balls outside the 天平 is normal.tvb now,tvbnow,bttvb& _6 e6 z: R6 `: P% ^# C$ Q/ j
then use the proved-normal ball on one side and put the other ball on other side
$ V9 ?. k, o8 E6 V+ i5.39.217.76to determine the abnormal is heavy and light |