this is too easy!!
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1. put 6 at each side.. take the one side which is heavier
3 X0 V/ o' y% `6 b2. put 3 at each side.. also take the heavier side
% x0 G( e7 g" K. C- N; n3. 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.. |