原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
6 b2 L) q) z9 N1 \8 Cfirst, compare 6 and another 6. they must have difference. 公仔箱論壇# w4 A# Q7 B3 r1 P
second, divide those 6 heavier one into two, each has 3. u will find difference again.
) P7 B! A% E$ P, z$ U3 C7 `third time, if u put 2 and they are equal, u will kno ... ! ^8 o$ x$ Q. m7 i% `) etvb now,tvbnow,bttvb
6 ?# Q; W! N+ _4 t5 F& ybut the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |