原帖由 stupid818 於 2008-4-17 11:42 PM 發表 $ ]- b: J( ^( ]
first, compare 6 and another 6. they must have difference. 5.39.217.776 K; k( @8 }) I3 Y$ z; Y4 u
second, divide those 6 heavier one into two, each has 3. u will find difference again.
^! O: |$ l4 p& otvb now,tvbnow,bttvbthird time, if u put 2 and they are equal, u will kno ... 5 |+ ?" t+ _4 N% D' S9 [
tvb now,tvbnow,bttvb+ G+ l: }. `2 K
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |