this is too easy!!4 D; W( L& G2 t: e4 u) a) H
( D6 u/ {: y9 M4 h' }% k公仔箱論壇1. put 6 at each side.. take the one side which is heavier7 S& i7 L, P2 v& r; W" j
2. put 3 at each side.. also take the heavier side公仔箱論壇. c4 \ K) f3 i' e: Z7 j; R4 [' S6 h
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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