this is too easy!!公仔箱論壇- @" y7 N$ ]1 w1 k% n' e4 O
公仔箱論壇& W. v/ E3 z$ f; C2 m
1. put 6 at each side.. take the one side which is heavier
2 M2 a2 r% t u+ {9 @2. put 3 at each side.. also take the heavier side
+ I+ u+ m) \1 f+ y5.39.217.763. 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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