原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
, q7 N: }: f/ hfirst, compare 6 and another 6. they must have difference. 公仔箱論壇7 r9 q5 Q8 P# B) U" e
second, divide those 6 heavier one into two, each has 3. u will find difference again.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。: w1 p- z: @) T4 s9 f1 C3 X7 y
third time, if u put 2 and they are equal, u will kno ... " Q3 f0 e- f* T) K5.39.217.76+ }: a/ H6 I {6 t7 Q& N; K
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |