this is too easy!!
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9 l N h$ i5 }! ~$ y公仔箱論壇1. put 6 at each side.. take the one side which is heavier
' T4 H- E. a. k1 F" m. g, e% mtvboxnow.com2. put 3 at each side.. also take the heavier sidetvboxnow.com* \0 f5 @' |, q5 W# T6 j V
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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