原帖由 stupid818 於 2008-4-17 11:42 PM 發表 
. B' q7 h' D5 I# M5 m4 F公仔箱論壇first, compare 6 and another 6. they must have difference. 4 z) {* \2 Q/ z, Q1 R2 \' j
second, divide those 6 heavier one into two, each has 3. u will find difference again.
1 K% U- a7 R: D; N! K- y' a5.39.217.76third time, if u put 2 and they are equal, u will kno ... 7 u' }; J1 F+ L) Y3 p- ]: f5.39.217.76. ^, v. L# h# v5 ?
but the question has not defined whether the abnormal ball is heavier or ligher than normal ones .... |