原帖由 stupid818 於 2008-4-17 11:42 PM 發表 tvb now,tvbnow,bttvb# z0 R3 u% m* @
first, compare 6 and another 6. they must have difference. ( z5 }3 a, Z$ {" @/ _
second, divide those 6 heavier one into two, each has 3. u will find difference again.5.39.217.77:8898, P R u7 _ A; C7 L/ n# L
third time, if u put 2 and they are equal, u will kno ... 5.39.217.77:8898) Y, n$ }1 L& N+ l9 g7 F6 h
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but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |