原帖由 stupid818 於 2008-4-17 11:42 PM 發表 tvb now,tvbnow,bttvb) ~/ @' A2 |# |3 z# j
first, compare 6 and another 6. they must have difference.
8 q! o- @# k/ L( Lsecond, divide those 6 heavier one into two, each has 3. u will find difference again.; y3 U1 @2 i) y" S9 B
third time, if u put 2 and they are equal, u will kno ... + }9 u3 h4 {; Y6 T$ B. ?4 O# e
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but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |