put 3 balls on each side,
4 g3 X1 ?) b+ P1 T, o( Qif balance, we can prove that all 6 balls on the 天平 is normal, 2 m- j6 q+ l3 i7 b
if not balance, we can prove that the 6 balls outside the 天平 is normal.
% q# F [% h& ^7 e% H. bthen use the proved-normal ball on one side and put the other ball on other side
' u. l# s6 i/ j: ETVBNOW 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 |