this is too easy!!
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1. put 6 at each side.. take the one side which is heavier- d1 I" \# w0 M
2. put 3 at each side.. also take the heavier side
5 a3 d: i- S- E) q# N, o3. 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.. |