this is too easy!!
2 u2 I+ K, r& e& o. f: V1 R" E
5 a9 I- Y& L( J1. put 6 at each side.. take the one side which is heavier
" k, `. [$ v& }% v0 P+ O9 G8 s+ k8 V2. put 3 at each side.. also take the heavier side公仔箱論壇+ t3 S& m7 [/ c3 `" c# F/ o) 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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