原帖由 stupid818 於 2008-4-17 11:42 PM 發表 1 W% D7 M: n/ i0 r5 n9 n
first, compare 6 and another 6. they must have difference. 9 X% Y* f# @3 `: P1 x( B6 F, C
second, divide those 6 heavier one into two, each has 3. u will find difference again.
9 M8 `! I8 s0 _; [0 V6 n3 ]$ M8 J5.39.217.76third time, if u put 2 and they are equal, u will kno ... , ^. y/ a; i, B2 `7 F. a$ ]tvb now,tvbnow,bttvb
- Y' u, Y4 E1 b6 U, h, ~, Kbut the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |