this is too easy!!
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1. put 6 at each side.. take the one side which is heavier
0 b2 P* \( o) b( `. `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。2. put 3 at each side.. also take the heavier sidetvb now,tvbnow,bttvb9 h; l; h5 z C4 B' d, ^4 Q
3. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball.. |
發表於 2009-1-7 05:31 AM
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