# 請幫忙翻譯英文題目?

An elevator starts at the basement with 8 people (not including the elevator operator)

and discharges them all by the time it reaches the top floor, number 6. In how many

ways could the operator have perceived the people leaving the elevator if all people

look alike to him? What if the 8 people consisted of 5 men and 3 women and the

operator could tell a man from a women?

Suppose that 10 fish are caught at a lake that contains 5 distinct types of fish. How

many different outcomes are possible, where an outcome specifies the numbers of

caught fish of each of the 5 types?

What if the 8 people consisted of 5 men and 3 women and the operator could "tell a man from a women"

"tell a man from a women是甚麼意思? tell不是告訴的意思嗎?

2 個已更新項目:

### 2 個解答

• Kookie
Lv 5
3 年前
最佳解答

1.) An elevator starts at the basement with 8 people (not including the elevator operator) and discharges them all by the time it reaches the top floor, number 6. In how many ways could the operator have perceived the people leaving the elevator if all people look alike to him? What if the 8 people consisted of 5 men and 3 women and the operator could tell a man from a women?

一部電梯自地下室載8個人上樓(不含電梯操作員)，在到達頂樓 (6樓) 時，所有搭乘人都已步出電梯。

a.) 如果在電梯操作員的眼中，所有搭乘人都是一個模樣，有多少種配送方式?

b.) 如果8人中組成方式為5男3女，有多少種配送方式?

2.) Suppose that 10 fish are caught at a lake that contains 5 distinct types of fish. How many different outcomes are possible, where an outcome specifies the numbers of caught fish of each of the 5 types?

假設湖中有5種不同種類的魚，今捕獲10條。有多少種可能結果?

where an outcome specifies the numbers of caught fish of each of the 5 types

每一結果明示5種魚的捕獲數量，例如，(3,0,1,5,1) 或 (9,0,0,1,0)

[補充]

What if the 8 people consisted of 5 men and 3 women and the operator could "tell a man from a women"

tell 在此是 "知道；辨別" 的意思，

I could tell (that) you were unhappy.

我看得出你當時很不高興。

http://dictionary.cambridge.org/dictionary/english...

如果不依字面，"琴研" 的 "區分和不區分性別" 是一清楚了當的敘述方式

問題敘述

1.) 10 fish are caught 捕獲10條魚

2.) at a lake (that contains 5 distinct types of fish) 從一湖中，(這湖中有 5 種不同種類的魚)

that 緊接 lake 之後是一形容詞子句，也是限定條件，說明這湖中有 5 種不同種類的魚。

• 琴研
Lv 4
3 年前

這是兩道數學排列組合問題。

（1）有一個載著8人的電梯（不包含電梯操作工）從底層開始運行，上昇到頂層六樓，所有人都下電梯。

①如果對操作工而言，乘客不區分性別，那麼從一樓到六樓，這8位乘客將會產生多少種下電梯的排列組合？

（即一樓下a人，二樓下b人……六樓下f人，而a+b+c+……f=8）

②如果乘客區分性別，8人中有5個男人和3個女人，那麼從一樓到六樓又將會產生多少種出電梯的排列組合？

（2）假設從湖中抓捕了10條魚，分屬於明顯不同的五個品種，那麼這五個品種各有多少魚，這將會產生多少种可能的排列組合？

（品種甲a條 + 品種乙b條 +…… +品種戊e條=10）