this is too easy!!
% g4 s, K" v& u4 @. m4 I$ m3 T
' K& w8 Z$ J1 g$ z- |+ _7 U1. put 6 at each side.. take the one side which is heavier
% W+ Z2 A3 }' y6 W2 S2. put 3 at each side.. also take the heavier side- g5 F$ e; E1 N5 `3 m' m4 \
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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