put 3 balls on each side, 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; ~1 H4 `$ z7 k
if balance, we can prove that all 6 balls on the 天平 is normal,
1 `1 X! W9 T( A5 u& {! l: E. Jtvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.5.39.217.770 B% |0 T: @/ G2 Y1 p
then use the proved-normal ball on one side and put the other ball on other side 5 L+ P/ b' e2 K. Z+ Z9 j
to determine the abnormal is heavy and light |