原帖由 stupid818 於 2008-4-17 11:42 PM 發表 tvb now,tvbnow,bttvb$ _/ V8 D' ?* {* K. i. K
first, compare 6 and another 6. they must have difference. / w) q) K% Q/ @; i- {6 i
second, divide those 6 heavier one into two, each has 3. u will find difference again.7 {, U9 @1 ]- M [% c; o) o
third time, if u put 2 and they are equal, u will kno ... 0 k% D; Y' f0 I公仔箱論壇. k4 Y/ F5 n6 n# _! n" {$ ?3 D
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |