原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
1 t$ Z2 L9 {- z& r5.39.217.76first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb- i# s) i" m3 f/ P9 s
second, divide those 6 heavier one into two, each has 3. u will find difference again.公仔箱論壇7 M( {/ O* m$ n
third time, if u put 2 and they are equal, u will kno ... 3 C. B6 y- f4 t9 P$ U3 j3 K2 V8 _* B
tvb now,tvbnow,bttvb4 v2 o0 r. q8 W
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |