this is too easy!!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。: o6 q5 J( {4 f# ?
v, A) R+ |/ N1 J, c) o$ P1. put 6 at each side.. take the one side which is heavier, t' o- T; s9 A' Q
2. put 3 at each side.. also take the heavier side* \/ B% m5 V, Y \0 @# i1 o
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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