原帖由 stupid818 於 2008-4-17 11:42 PM 發表 ; N) d6 ]) X1 t
first, compare 6 and another 6. they must have difference.
8 N* v* Z' J/ I L- K, e1 p* k7 y5.39.217.77:8898second, divide those 6 heavier one into two, each has 3. u will find difference again.
* g$ z1 ?. U3 p7 t- V8 P公仔箱論壇third time, if u put 2 and they are equal, u will kno ... ! w: N5 L/ O, h. e9 ^$ _公仔箱論壇% t/ U: c- y* B s1 z
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |