put 3 balls on each side, * N2 H- I2 F4 k" I) f7 X
if balance, we can prove that all 6 balls on the 天平 is normal,
$ L' Q: A, c8 y. A& J0 nif not balance, we can prove that the 6 balls outside the 天平 is normal.
# ~, z0 `% |9 Z0 I! {# t: v6 z3 n/ [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。then use the proved-normal ball on one side and put the other ball on other side
1 Q$ h- J! u y公仔箱論壇to determine the abnormal is heavy and light |