this is too easy!!( S5 p' U* A: P9 ]( r$ K
5.39.217.77:88984 N3 V# M& ?; r1 _, T
1. put 6 at each side.. take the one side which is heaviertvb now,tvbnow,bttvb% Q: O. h% t @3 }7 w
2. put 3 at each side.. also take the heavier side5 p3 w6 j# f, z. e3 U
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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