this is too easy!!
* k0 J- g6 }/ y; ?5.39.217.76
l% _ R, z- `4 P. G& P2 _5.39.217.761. put 6 at each side.. take the one side which is heavier
6 Y |7 x& h9 O% ?. E. _0 p2. put 3 at each side.. also take the heavier side5.39.217.764 _# C- N" D1 ]
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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