put 3 balls on each side,
3 {1 k5 r8 A6 ~( bif balance, we can prove that all 6 balls on the 天平 is normal, 公仔箱論壇# m* K) o' D+ R. k
if not balance, we can prove that the 6 balls outside the 天平 is normal.
* F, H1 i7 ~. s) G, a" gTVBNOW 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 g9 Q1 i+ c+ n% r+ T8 Gto determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
| 
