this is too easy!!
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" t1 h' [& i9 Y8 F6 [* f: p1 ?/ r9 `公仔箱論壇1. put 6 at each side.. take the one side which is heaviertvboxnow.com4 l- i F+ @2 I7 U( H# \2 q
2. put 3 at each side.. also take the heavier side
% C- I+ f- x0 ~' p' k/ ?2 Q/ u3. 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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