原帖由 stupid818 於 2008-4-17 11:42 PM 發表 5.39.217.77- w' [2 V" ]( ~+ Q- N+ n
first, compare 6 and another 6. they must have difference.
# R4 R) j3 C+ i5 W$ d, D4 hsecond, divide those 6 heavier one into two, each has 3. u will find difference again.
. c, D" P2 y3 P- Mthird time, if u put 2 and they are equal, u will kno ... 5.39.217.775 ]$ ~) [& x1 k6 p8 |/ y8 h
公仔箱論壇, a3 H& J% d0 y, |# Z6 c k' N; T
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |