this is too easy!!( _( L" y+ @; N, g' _, J2 d- e
% \1 _5 L( [0 N& F" M9 r `! {1. put 6 at each side.. take the one side which is heaviertvb now,tvbnow,bttvb# A2 s+ D% `, O O
2. put 3 at each side.. also take the heavier side
- W( p3 `/ v$ Ntvb 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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