this is too easy!!
& I; k0 ]1 N" b公仔箱論壇tvb now,tvbnow,bttvb+ L' [9 y0 |9 A* A9 B" @
1. put 6 at each side.. take the one side which is heaviertvb now,tvbnow,bttvb2 p; v, M! I6 `- s' U
2. put 3 at each side.. also take the heavier side
# c' x' {; y1 D9 E5 e5.39.217.77:88983. 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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