[計量] pp數學問題詢問

看板GMAT作者 (咪咪布丁)時間14年前 (2010/07/06 15:19), 編輯推噓0(002)
留言2則, 2人參與, 最新討論串1/1
all of the stocks are designated by either 4-letter or 5-letter code that is created by using the 26 letters of the alphalate, what is the maximum number of different stockt hat can be designated with these code? 答案是27(26^4) 想請問是怎麼算的>< 拜託了....!! 謝謝^^ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.32.212.102

07/06 16:26, , 1F
26^5(5-letter)+26^4(4-letter)=Answer
07/06 16:26, 1F

07/06 17:31, , 2F
對吼~~~~~~~~~~了解了!! 感謝!! ^^
07/06 17:31, 2F
文章代碼(AID): #1CCja4gs (GMAT)