[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

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100人搬100塊磚tvb now,tvbnow,bttvb6 x1 t4 [& z! ?, H7 t! b* J: O' c
規則公仔箱論壇) B& i: m$ c# v, m3 |
只何用100人搬100塊磚,不能多也不能小...
2 q2 P! N% W1 _tvb now,tvbnow,bttvb100人當中有男人、女人同細路仔
- \5 ^. B/ @1 @7 S0 d* B6 U5.39.217.771個男人搬6塊磚tvb now,tvbnow,bttvb$ b; f6 ?5 N9 k/ H+ A& I2 {7 k
1女人搬3塊磚
" s0 ~( E6 A/ A0 a  c0 k5.39.217.772個細路仔搬1塊磚公仔箱論壇( ]( Y7 I9 z' M* X1 R5 ?
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, d7 v; W; n7 Z7 C# s6 \公仔箱論壇問搬100塊磚
) ?: @% j# s# w9 o/ R( U$ G7 XTVBNOW 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。要幾多男人、女人同細路仔tvb now,tvbnow,bttvb$ g  o, x% b- t" h; l4 u9 H

' s2 l) t: }! Q) t. pTVBNOW 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
6 R0 o, u/ c3 Z; a, D5 q; ftvb now,tvbnow,bttvb
5 N( {( p+ Q* i" G7 ?* R公仔箱論壇[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.' o; R# T5 Y7 _* |+ Y3 e2 K$ X, \
Let x = Male, y = Female, z = Child  w$ {3 c8 w4 Y6 i9 i
6x + 3y + z/2 = 100   Formula 1公仔箱論壇9 O. o0 F! W" {( G7 K3 x' i' ]
x + y + z = 100    Formula 26 y8 c. b: F- F
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
. u1 J1 @4 o5 |" k6 G; B5.39.217.77Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4% p0 k% w( y8 B7 B) V9 |3 k
Formula 4 can change into 11x + 5y = 100 Formula 5
6 m) S* F5 g% ?" ^4 z: T( r5.39.217.77In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
! J. C* o" A" L1 U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.tvb now,tvbnow,bttvb' z  @- s$ h" W, O' w; O( ^
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
8 A. q, K7 U( E! C( I! Y" _* v0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
+ ^- N' j7 i/ J* u5 t8 [公仔箱論壇11x + 5y = 100 Formula 5

5.39.217.771 O) W' V: `4 p% M# x
11X must be 0 or multiple of 5
8 B8 w) z. |! w3 bthat meanz x must be 0 or 5

manstein

86 children
! F! d$ T5 o7 K. e9 ~tvb now,tvbnow,bttvb5 male
- |0 d  g& O1 M6 @0 E! Z' Y9 W9 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

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答案:  男人   女人   細路仔1 t3 O3 X+ }$ X+ @( S  [
          5        9       86

fristz

thx4sharing