原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
M$ T- Y" x' D+ E0 efirst, compare 6 and another 6. they must have difference.
' v6 Y1 ?& q3 Y- m6 ~second, divide those 6 heavier one into two, each has 3. u will find difference again.
. v- ?$ i" p# c' Vthird time, if u put 2 and they are equal, u will kno ... ; H6 l7 J$ Q5 f, Y; Atvb now,tvbnow,bttvb
, J" V4 m, i' Z- [: e9 I5.39.217.76but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |