this is too easy!!
/ y+ M$ w" B! F k5.39.217.76
2 Q7 l- L3 I% C p. H9 J公仔箱論壇1. put 6 at each side.. take the one side which is heavier
/ R$ ]' a; n2 g9 D9 o- @. g2 W4 J5.39.217.762. put 3 at each side.. also take the heavier side9 v0 s9 v0 T* a5 j: w
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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