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this is too easy!!
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1. put 6 at each side.. take the one side which is heavier
' n- `8 B/ F. K$ h2 VTVBNOW 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,bttvb* f: @2 y4 @; \( l: i3 w6 c: F
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..
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