this is too easy!!" d) v4 }# @. f) S0 ~: o$ ^
. J2 j" X. h' _: m Q( n! h9 a公仔箱論壇1. put 6 at each side.. take the one side which is heavier
: [" C8 [& n) ^7 n8 P: D7 J3 T5 d0 zTVBNOW 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 side, [4 B E% {& C. [' 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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