this is too easy!!
& ^6 L9 n& g# C* x7 ktvb now,tvbnow,bttvb
/ O6 |+ I j. Z5 G4 ~: l+ xtvb now,tvbnow,bttvb1. put 6 at each side.. take the one side which is heavier
( r; _7 T6 |& d4 n2 z5 b! Z5 P2. put 3 at each side.. also take the heavier side公仔箱論壇1 }, _4 h& y: i0 Y* H
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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