this is too easy!!. ~2 D" S7 y4 w' O' D
6 w$ S! |) k+ h; Y. b1 I+ j3 Ntvb now,tvbnow,bttvb1. put 6 at each side.. take the one side which is heavier* j5 W5 T; E: Q& t. m& H( z8 T
2. put 3 at each side.. also take the heavier sidetvb now,tvbnow,bttvb" z; e1 ?5 F! h/ 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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