think easier 回複：The answer is 32

mathg · 2010-08-16 22:21:54Z

think easier 回複：The answer is 32簡介

來源: mathg 於 2010-08-16 22:21:54 [檔案] [舊帖] [給我悄悄話] 本文已被閱讀：次 (118 bytes)

回答: 排列組合由數學題於 2010-07-21 23:01:59

view a pair as a single person, so we have c(3,4) but each pair can offer 2 choices. so tatol is c(3,4)*2*2*2*2 = 32.

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