this is too easy!!: B$ M! S& ~" z7 I b5 P& s
9 t* l/ M$ W' ^. F3 P, x6 k1. put 6 at each side.. take the one side which is heavier
$ C* [* H( j$ l! w8 j公仔箱論壇2. put 3 at each side.. also take the heavier side
5 p) p6 x8 z$ B6 `% y1 F6 l5.39.217.763. 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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