this is too easy!!www3.tvboxnow.com" x( O4 i, s% W5 q" o5 t+ S6 T7 q/ t4 v7 ?
6 Z! N; r1 i- h a- W# N% E
1. put 6 at each side.. take the one side which is heavier+ B! K2 {: N# E; N% f: \
2. put 3 at each side.. also take the heavier side
2 g5 q$ n% G3 |; S3. 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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