原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
! i: F9 Q% g9 c+ [( m公仔箱論壇first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb/ Z( V% l: K: P t# K: z c
second, divide those 6 heavier one into two, each has 3. u will find difference again.
' B D' {4 V6 t- \4 vthird time, if u put 2 and they are equal, u will kno ... 8 T; _$ y8 T, b jtvb now,tvbnow,bttvb7 b: x& b: n6 r5 U3 k0 f$ m
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |