kfflee

原帖由 stupid818 於 2008-4-17 11:42 PM 發表 5 o/ J4 z2 \2 B; _3 y- ?
first, compare 6 and another 6. they must have difference. 公仔箱論壇- N$ y9 j# I" d5 j7 O% o
second, divide those 6 heavier one into two, each has 3. u will find difference again.
2 k8 B" }3 T2 iTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。third time, if u put 2 and they are equal, u will kno ...

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but the question has not defined whether the abnormal ball is heavier or ligher than normal ones ....

kfflee

終於想通了 , 但跟樓主答案不一樣的方法' Z9 ?- c$ F( s; x( n1 I

2 T7 C2 |5 Y6 R6 }$ q0 HTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。用了... 大約兩三小時
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[ 本帖最後由 kfflee 於 2008-4-21 02:15 PM 編輯 ]