this is too easy!!
7 o0 O3 i* l% m/ Z. a8 U: ltvb now,tvbnow,bttvb$ r9 E K& M( i- q! |9 s
1. put 6 at each side.. take the one side which is heavier
3 G# W; v6 j) j公仔箱論壇2. put 3 at each side.. also take the heavier side公仔箱論壇9 d8 R7 N! d% z* z
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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