put 3 balls on each side, * C0 \. d5 _: G1 M! E
if balance, we can prove that all 6 balls on the 天平 is normal,
& g& ^, h0 h! n; N1 k/ {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。if not balance, we can prove that the 6 balls outside the 天平 is normal.
8 i% A* K' Q6 [( ?0 T4 [& `then use the proved-normal ball on one side and put the other ball on other side 公仔箱論壇* b0 ^+ Z$ w6 R0 b& H4 r3 o* v! }
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
| 
