公仔箱論壇 - Powered by Discuz! Board

標題: [IQ題] [數學題]100人搬100塊磚 [打印本頁]

作者: 1/5 時間: 2007-10-13 05:08 PM 標題: [數學題]100人搬100塊磚

100人搬100塊磚TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。$ K4 |: v9 F# i+ h
規則
只何用100人搬100塊磚,不能多也不能小...
100人當中有男人、女人同細路仔公仔箱論壇; O# r: X: s! M' S3 Z2 K
1個男人搬6塊磚5.39.217.76& U Z w' T: g, i
1女人搬3塊磚
2個細路仔搬1塊磚' m. @, t$ r/ l' T
**************************************************************
問搬100塊磚
要幾多男人、女人同細路仔

答案30號公佈

[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

作者: twinsdragon 時間: 2007-10-13 05:40 PM

That is a very simple mathematics question.
Let x = Male, y = Female, z = Child5 f* n: `4 C1 n4 b7 Y
6x + 3y + z/2 = 100 Formula 1
x + y + z = 100 Formula 25.39.217.76. @0 d" o( C p! A
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
Formula 4 can change into 11x + 5y = 100 Formula 5
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
And between 0 and 9, only 0 can give me a single number of y. So, x has to be 0 and y have to be 20. Then put x and y back to formula 1, we get z = 80.
Eventually, the answer is 20 female and 80 children and no male.

作者: alan1234 時間: 2007-10-14 12:19 AM 標題: two answers

man,female,children9 ~$ g0 w9 e$ Z$ C* \
0,20,80 or 5,9,86

作者: RyanC 時間: 2007-10-14 10:46 PM

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 tvb now,tvbnow,bttvb, N5 k$ _( S3 z( l$ T' {" Q: f7 B
11x + 5y = 100 Formula 5

11X must be 0 or multiple of 5TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。8 Q2 D C$ g8 l$ _ e7 C. L7 R6 H$ ^5 G
that meanz x must be 0 or 5

作者: manstein 時間: 2007-10-15 08:28 PM

86 children
5 male
9 female

作者: dafunhei123 時間: 2007-10-15 10:39 PM

数学问题，线性代数，我算算再说

作者: dafunhei123 時間: 2007-10-15 10:47 PM

4楼5楼的算对了。看来这里的人也很无聊，线性代数，大学的教材

作者: ghjleo 時間: 2007-10-17 04:23 PM

5,9,84

作者: leou2830 時間: 2007-10-20 10:21 AM

想知道耶

作者: 1/5 時間: 2007-10-30 01:02 AM

答案: 男人女人細路仔
5 9 86

作者: fristz 時間: 2007-12-6 10:09 PM

thx4sharing

歡迎光臨公仔箱論壇 (http://5.39.217.76/)