原帖由 stupid818 於 2008-4-17 11:42 PM 發表 $ x/ O( e4 b3 N# Q+ b0 L+ w
first, compare 6 and another 6. they must have difference. 公仔箱論壇- I% U9 w* @( g: r$ \' R8 ?" Z
second, divide those 6 heavier one into two, each has 3. u will find difference again.
9 N. g" f8 U9 gtvb now,tvbnow,bttvbthird time, if u put 2 and they are equal, u will kno ... 2 J" O/ `/ {% U! p0 {$ C2 D
; ~8 K4 Y" i2 D2 S" G, k( rtvb now,tvbnow,bttvbbut the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |