this is too easy!!
1 e3 l2 C( t( M. O* B% h9 W1 L7 r% i) D& u- j
1. put 6 at each side.. take the one side which is heavier公仔箱論壇* d& K- V; T( o5 y
2. put 3 at each side.. also take the heavier sidetvb now,tvbnow,bttvb) W2 Z0 _3 G7 F3 M+ ]6 I1 m! [
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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