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tvb now,tvbnow,bttvb4 S) T7 Z. a, |1 Z& o* F; G) S
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tvb now,tvbnow,bttvb, o% W+ c0 D' o
1個男人搬6塊磚
1女人搬3塊磚
2個細路仔搬1塊磚
**************************************************************
問搬100塊磚5.39.217.76# {- P0 X* e/ _& B7 y
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.公仔箱論壇; b4 B8 n9 K7 t" _1 ?. l: E
Let x = Male, y = Female, z = Child公仔箱論壇$ @# J1 D7 O1 c
6x + 3y + z/2 = 100 Formula 15.39.217.76& c) L. J8 {: x$ {
x + y + z = 100 Formula 2
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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。5 c: [3 R9 ]/ w r* Q$ N1 Y; w+ I
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4% [1 r' ]4 ~: K2 J! w" U$ ?& U
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.76+ i: C( t2 z7 e$ c7 t
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,children) D4 E4 h* ~& Z: d. C; y8 G8 A' d/ \
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 發表公仔箱論壇+ J+ m$ D4 D4 d6 T: j( @+ x- X% s
11x + 5y = 100 Formula 5

tvb now,tvbnow,bttvb2 R0 z# E6 O) u) R
11X must be 0 or multiple of 5公仔箱論壇2 r6 |+ v/ Y i! {5 m* ^; M* e
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tvb now,tvbnow,bttvb8 E' [. Y' N$ t9 w' _
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/)