this is too easy!!tvb now,tvbnow,bttvb: y3 B- y9 }% @( }0 @6 l
tvb now,tvbnow,bttvb. s5 P1 j% B0 j! F
1. put 6 at each side.. take the one side which is heavier' p2 c w8 i o ~9 X+ Y; l L
2. put 3 at each side.. also take the heavier side# e0 s" A: B9 k& c, O6 Q8 d
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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