this is too easy!!
' K% q0 a. }: M; I9 A2 Q) A% I) p+ f公仔箱論壇: T7 e" }& U {3 V! P
1. put 6 at each side.. take the one side which is heavier4 W6 C2 y# c) T, w9 c& p1 S: d5 f$ p
2. put 3 at each side.. also take the heavier side
8 M- f# z( p9 o$ K7 a7 j" J' |公仔箱論壇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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