原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
- d e6 d1 ` n Y, i5.39.217.76first, compare 6 and another 6. they must have difference.
3 z) [9 o4 I: r% e( j# y" Csecond, divide those 6 heavier one into two, each has 3. u will find difference again.. ]' P/ I# _& e' X' ?
third time, if u put 2 and they are equal, u will kno ... # L! Q$ h0 T3 e; j, X( y7 o( u公仔箱論壇公仔箱論壇. D4 n/ X, d' F; {: C
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |