[IQ題] [數學題]100人搬100塊磚 ， 描述： 問要幾多男人、女人同細路仔

1/5

100人搬100塊磚
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8 X/ F5 |8 d- b/ b9 B5.39.217.77:8898只何用100人搬100塊磚,不能多也不能小...公仔箱論壇8 }$ M0 L+ M% g3 s+ H- ^
100人當中有男人、女人同細路仔
: M0 E( i6 r  C- s" L* i5 `4 j2 q& E5.39.217.77:88981個男人搬6塊磚
6 _/ C4 i( M1 _6 f: H6 X- f, G5.39.217.77:88981女人搬3塊磚
+ ?, U: O/ q# T9 o- Z2個細路仔搬1塊磚
% p4 k, h0 _5 D2 k" B3 `**************************************************************
4 B; H5 W1 Y8 CTVBNOW 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。問搬100塊磚tvb now,tvbnow,bttvb8 i' E9 D* }1 [6 y+ ^: r: o8 p
要幾多男人、女人同細路仔
; j, {: l' }3 |4 R5.39.217.77:8898
% ?2 A2 m6 {& p" G7 \6 OTVBNOW 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。答案30號公佈3 i* S, h/ N/ F8 A
! R8 _5 q" U- y) U$ k! o3 n
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.公仔箱論壇, c* C% l4 j6 @, c$ P; H
Let x = Male, y = Female, z = Child
" e) H# p4 `5 H2 r! vtvb now,tvbnow,bttvb6x + 3y + z/2 = 100   Formula 1公仔箱論壇! d# p5 H' v8 C$ S2 g9 r# H
x + y + z = 100    Formula 2
  \; e. q$ o: h) c2 A公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3' |" P: m0 g5 B  g4 J# {
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4. b4 @" r# j: w5 B+ u
Formula 4 can change into 11x + 5y = 100 Formula 5
& t, A5 N) ?3 c% ~; y% O' B; Xtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
1 w1 r3 A6 v4 [公仔箱論壇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.
3 N$ I2 W3 i: O# A$ _* }Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
* Q5 u# [  U1 _8 l1 p6 O* T公仔箱論壇0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 5.39.217.77:8898! w; h8 B5 k) {/ Y! W
11x + 5y = 100 Formula 5

1 ]1 S& y% k% K5 Xtvb now,tvbnow,bttvb11X must be 0 or multiple of 5
' x9 [0 K7 j( w/ ^6 y1 f  i5.39.217.77:8898that meanz x must be 0 or 5

manstein

86 children
2 I- z- E2 r* A) K! f1 v5.39.217.77:88985 male
$ u$ _% A* h7 `* h4 m' e- nTVBNOW 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。9 female

dafunhei123

数学问题，线性代数，我算算再说

dafunhei123

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

ghjleo

5,9,84

leou2830

想知道耶

1/5

答案:  男人   女人   細路仔
7 p7 ]; m; b1 D公仔箱論壇          5        9       86

fristz

thx4sharing