this is too easy!!
. T# ~! A4 x2 g ]' Z! v9 ?6 x' j* B# V" K
1. put 6 at each side.. take the one side which is heavier" `, g: p! F. p, a; t
2. put 3 at each side.. also take the heavier sidetvb now,tvbnow,bttvb7 u$ G5 r% a5 u$ V! S- p* J/ k
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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