this is too easy!!
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1 T- e7 b/ C: v, u) @8 [/ \; M: M公仔箱論壇1. put 6 at each side.. take the one side which is heaviertvb now,tvbnow,bttvb, ]1 ?6 e; i* B& f/ p5 m. ?
2. put 3 at each side.. also take the heavier side
: t% z( S K, d( |0 f5 `1 ^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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