this is too easy!!tvb now,tvbnow,bttvb; z, I4 v/ t {5 U3 C
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1. put 6 at each side.. take the one side which is heavier公仔箱論壇& s+ E$ b' ~. b
2. put 3 at each side.. also take the heavier sidetvb now,tvbnow,bttvb, n4 q' u9 l: L; I1 B# ]
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.. |