put 3 balls on each side,
0 y/ A) \. F& C% Y, Wif balance, we can prove that all 6 balls on the 天平 is normal, ! I' Q' W8 A% P5 ^' E/ e8 y
if not balance, we can prove that the 6 balls outside the 天平 is normal.# o: I9 b/ }$ I. `* B
then use the proved-normal ball on one side and put the other ball on other side
0 _, W3 j* U; _( p* t: HTVBNOW 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 |