[理工] [離散] 排列組合
看板Grad-ProbAsk作者charliejack (charliejack)時間13年前 (2011/02/10 19:49)推噓2(2推 0噓 5→)留言7則, 4人參與討論串3/8 (看更多)
In a lottery game, there are 100 tickets.
The tickets are numbered 1, 2, ..., 100.
Four different prizes are awarded. if the people holding
tickets 2, 4, 8, and 16 all win prizes,
how many ways are there to award the prizes?
(A)1024
(B)990
(C)32
(D)24
我其實有點看不懂題目......
我的認知是 拿到 2, 4, 8, 16 的組合方法嗎?
4 + 6 + 4 + 1 = 15?
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推
02/10 20:01, , 1F
02/10 20:01, 1F
→
02/10 20:28, , 2F
02/10 20:28, 2F
→
02/10 20:28, , 3F
02/10 20:28, 3F
→
02/10 20:31, , 4F
02/10 20:31, 4F
→
02/10 20:31, , 5F
02/10 20:31, 5F
推
02/10 20:33, , 6F
02/10 20:33, 6F
→
02/11 08:48, , 7F
02/11 08:48, 7F
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