1. 1st divide to half take the heavier out5 V2 j0 D! y" C2 W9 h$ L
2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)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。6 A D$ W! F8 Y
3. Same method if is not equal on 2nd try. |
發表於 2011-11-4 12:49 AM
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