原帖由 stupid818 於 2008-4-17 11:42 PM 發表 # a& G4 Q, ^( b
first, compare 6 and another 6. they must have difference.
3 X# N" ]. z! E* ]3 @) L' h公仔箱論壇second, divide those 6 heavier one into two, each has 3. u will find difference again.
3 K; x1 p4 C: F6 E1 J- Dtvb now,tvbnow,bttvbthird time, if u put 2 and they are equal, u will kno ... , ?* k6 N8 d% x
& }5 C0 M7 @8 D. _but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |