this is too easy!!
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1. put 6 at each side.. take the one side which is heavier* ]. q" [7 Y8 f v
2. put 3 at each side.. also take the heavier side5 Q" ]4 c3 O8 B) H
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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