Question

非常简单的英文数学题！50分血本悬赏！过了这村可就没这店啦！

In the Acme Universiy CCIS department there are 20 equal-size mailboxes
to be shared by all the faculty, and TAs. Mail is sorted by the
recipient's last name. There is one mailbox for each letter of the
alphabet with sharing for I-J, P-Q, U-V-W, X-Y-Z.

1) If 775 letters are
sorted into the mailboxes, then what is the largest integer N such that
we can be sure one mailbox contains at least N letters?

2) If
each mailbox can hold a maximum of 90 ordinary letters in standard
legal-sized envelopes, what is the minimum number of such letters that
will certainly cause an over-flow when they are sorted into the
mailboxes?

3) The minimum number of letters that must be sorted into the mailboxes to force the "F" box to overflow is approximately( ? )
又加了50分悬赏！！100分寻找中国能耐心解题的智慧青年！！分什么的不是重点！！

Answer 1

在大学部有20个顶点组成大小相等的邮箱是由全体员工共享，和助教。邮件是按收信人的名字来命名的。有一个邮箱为每个字母与矩阵，PQ，UVW共享，x-y-z.
(1)如果775个字母的排序进入邮箱，那么什么是最大的整数n，使得我们可以肯定一个邮箱包含字母至少N？
(2）如果每个邮箱可以在标准的法律大小的信封容纳90普通信件，这些信件是最小的数，肯定会引起过流时，他们被分成邮箱？
(3）字母的最小数目必须被分类到邮箱力的“F”框溢出约（？）
楼主我只能帮到你到这了~ 真心不会做啊！！！ 如果楼主善良~ 能给我个采纳就行了~谁在乎分数啊！！

Answer 2

在大学部有20个顶点组成大小相等的邮箱是由全体员工共享，和助教。邮件是按收信人的名字来命名的。有一个邮箱为每个字母与矩阵，PQ，UVW共享，x-y-z.
(1)如果775个字母的排序进入邮箱，那么什么是最大的整数n，使得我们可以肯定一个邮箱包含字母至少N？
(2）如果每个邮箱可以在标准的法律大小的信封容纳90普通信件，这些信件是最小的数，肯定会引起过流时，他们被分成邮箱？
(3）字母的最小数目必须被分类到邮箱力的“F”框溢出约

Answer 3

好吧，我坦诚的说一句，我不下地狱，谁爱下谁下，数学题我不在乎，关键是这一长串的英文让我望而却步，因此恕在下爱莫能助，但我相信，五百年后，待你找到赐你脚掌七颗志的时候，你就会找到答案了，那时你就会找到一种柳暗花明又一村的感觉，祝你顺利

追问

当你敲完这些废话的时候，我已经快做完这些题了。也祝你顺利。

Answer 4

(1)

In the worst case scenario, the letters ar eevenly distributed, each box got int(775/20) = int(38.75) = 38 letter, the remainder is 775 mod 20 = 15. Again in worst case scenario, those 15 letters will be in 15 different boxes, so N is 38 + 1 = 39

(2)
In worst case scenario, each box receives 90 letters w/o overflowing, so the total is 90*20 = 1800 letters. Another letter will make one overflow, so the answer is 1800 + 1 = 1801

(3)
In worst case scenario, all letters are for box F, so it takes 91 letters to overflowing it.

Answer 5

在Acme大学CCIS DEP