[數學] 請教排列組合問題

看板GRE (GRE入學考試)作者 (時光飛逝)時間18年前 (2007/08/18 00:02), 編輯推噓0(000)
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做pp3做到的: Seven one-dollar bills are to be distributed among A, B, C(人名省略) so that each person recieves at least $1. A. The number of ways to distribute the bills so that at least one person recieves at least $3. B. The total number of ways to distribute the bills. Ans: C (equal) 麻煩了,有勞眾高手...orz -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 125.225.91.52
文章代碼(AID): #16nSQafu (GRE)
文章代碼(AID): #16nSQafu (GRE)