this is too easy!!& E$ i" X6 Z" H! n9 ~9 T
7 R! L$ n2 A; g. q4 W4 a2 ytvb now,tvbnow,bttvb1. put 6 at each side.. take the one side which is heavier
' C; t3 e2 Y7 q& z: C2. put 3 at each side.. also take the heavier side
- ^# v: z' T& b0 ^2 t8 h# K/ u+ Ltvb now,tvbnow,bttvb3. 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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