原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
2 h& c: m) [& m2 E- a- Wtvb now,tvbnow,bttvbfirst, compare 6 and another 6. they must have difference. 公仔箱論壇, M1 w* A- T6 F4 U s. o4 s. t
second, divide those 6 heavier one into two, each has 3. u will find difference again.公仔箱論壇0 x( V2 A" k1 n0 p. Y4 V+ l0 w: M8 f# y
third time, if u put 2 and they are equal, u will kno ... ' ?$ \8 a- Q2 e- b2 T, [tvb now,tvbnow,bttvb
) ?) h2 `$ D9 k' G' |公仔箱論壇but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |