this is too easy!!
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1. put 6 at each side.. take the one side which is heavier
9 | a% F9 f; A, I8 K! c2. put 3 at each side.. also take the heavier side
6 F3 i5 L+ Y1 R4 w/ D) m) ^www1.tvboxnow.com3. 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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