[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
, ~, L# a$ K9 v6 z. R  w% D5 Ltvb now,tvbnow,bttvb規則
5 B# C: \+ P% W& c7 M+ O/ b只何用100人搬100塊磚,不能多也不能小...www2.tvboxnow.com$ M* X; \* D" Z8 `2 Z2 B0 [1 R
100人當中有男人、女人同細路仔
! K+ [9 b8 J' y& R# ^- m# c公仔箱論壇1個男人搬6塊磚
# v  x4 `" y- |" M) E9 w公仔箱論壇1女人搬3塊磚' {/ R8 x% r% V7 [- V
2個細路仔搬1塊磚
1 e, l3 E# @+ x, [**************************************************************
0 A7 g2 K' V8 i- _; `www2.tvboxnow.com問搬100塊磚
. Y7 i, |- n6 i# e0 D要幾多男人、女人同細路仔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。" [% r$ `! I8 k% d

+ M$ h$ Q$ p) h+ j1 \www2.tvboxnow.com答案30號公佈
& E; y; B' b5 A2 P# t: G- E! L3 X( o! Z5 Q
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.
+ q$ C% G5 B+ _# S6 P5 |/ yLet x = Male, y = Female, z = Child
# w( R& b( z# w# S. ]3 c5 P6x + 3y + z/2 = 100   Formula 1
6 l3 a% m! C! F- x. O8 `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。x + y + z = 100    Formula 2
( Y/ c. W6 N$ D+ O4 K5 etvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3www2.tvboxnow.com* W4 H! r9 F7 f( b
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
  n. J3 K& g+ m6 K1 V公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5
: q/ H" X/ s9 P+ g+ {www2.tvboxnow.comIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇7 S: K  K) y; w+ [3 a+ p) k
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.
5 S4 F& J% [* J$ WEventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
7 o: p2 Z2 R5 y( |6 otvb now,tvbnow,bttvb0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 . G4 X  P! G- g7 r; S
11x + 5y = 100 Formula 5

www2.tvboxnow.com' b8 Q! R2 ?. T; n; n( `" K! I7 b
11X must be 0 or multiple of 5; s: r2 Z: @* ^! [7 F
that meanz x must be 0 or 5

manstein

86 children
* y1 Z8 Q2 k; ^- W( B5 male
; O  C* n: @: e& wtvb now,tvbnow,bttvb9 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
1 W9 E5 X+ W4 h+ f9 h' \9 I' K1 U* p          5        9       86

fristz

thx4sharing