put 3 balls on each side,
v$ ^( h' P% eif balance, we can prove that all 6 balls on the 天平 is normal,
6 F: V/ Y1 b! I0 I- u' a rtvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.( P( j, `) a; J. H
then use the proved-normal ball on one side and put the other ball on other 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。/ m, C5 A+ e8 V+ k7 g
to determine the abnormal is heavy and light |