this is too easy!!
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1. put 6 at each side.. take the one side which is heaviertvb now,tvbnow,bttvb& ^2 O8 L; U+ G5 v! T: L
2. put 3 at each side.. also take the heavier side
; E& g- ~ p2 v) f' O6 @" ?4 r8 A3. 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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