原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
2 ~3 e5 Y* [7 c0 \! ] [5 D/ r6 @first, compare 6 and another 6. they must have difference. 公仔箱論壇! |2 p9 Y( U8 Z' D, @! ~7 q
second, divide those 6 heavier one into two, each has 3. u will find difference again.公仔箱論壇) U2 K- x' w5 ~! ?# V9 x
third time, if u put 2 and they are equal, u will kno ... 8 M" V I) v& Q$ H
, d8 G: R# a, l- btvb now,tvbnow,bttvbbut the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |