[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; `0 W5 [7 V0 [5 [: U0 v& |
規則
2 M4 v& l, ~$ a5.39.217.76只何用100人搬100塊磚,不能多也不能小...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。" k: u* k; _' u- }. D
100人當中有男人、女人同細路仔
3 i6 D: n+ H- ?+ v& k1個男人搬6塊磚5 T, P' g/ R7 h% r
1女人搬3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。6 g9 `6 Z3 n8 K' D' U/ x
2個細路仔搬1塊磚公仔箱論壇1 q7 h' M9 o6 }8 k6 w5 v/ t
**************************************************************5.39.217.76( y8 _/ G; b5 G9 C& q' H9 ]: W
問搬100塊磚tvb now,tvbnow,bttvb$ b0 Z& k# J! q; A( Z7 u( |. k
要幾多男人、女人同細路仔
  f! x1 R* ^3 D. b5 r( `- ^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。tvb now,tvbnow,bttvb! H2 K: S; B* W# [  J! ?
答案30號公佈5.39.217.766 x5 L$ _: s  |: U2 Y' M. p' @

+ ~0 S, \) T; Otvb now,tvbnow,bttvb[ 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; N; L* b  I8 O0 ~
Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb' X$ i: J' O7 m. f5 {
6x + 3y + z/2 = 100   Formula 1
8 n! _, f9 |1 \9 T7 y2 Ztvb now,tvbnow,bttvbx + y + z = 100    Formula 2* i$ _. S) U4 y% z  L! {
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇6 Y+ K+ X# u" @
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.767 G5 n6 x3 D2 q
Formula 4 can change into 11x + 5y = 100 Formula 5
$ F8 s5 z8 t# |3 y# ttvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.6 p0 o# d" N! a% l, x6 x
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.
. Q0 u4 j! R* m. Dtvb now,tvbnow,bttvbEventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,childrentvb now,tvbnow,bttvb( o' v/ O) f: t! Z" x
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 & z' o* ~3 ~* {+ f/ R2 \% _/ O' z
11x + 5y = 100 Formula 5

" `, u8 W1 h  u6 }% N4 A) P
11X must be 0 or multiple of 55.39.217.762 r* [% ]3 |! t' k+ X: c
that meanz x must be 0 or 5

manstein

86 children. m) N/ D9 p. V5 a7 G4 i
5 male ) I$ f) N7 U0 w/ Z! e0 B6 j, s) P! P
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5.39.217.76" U% ]: z' ]- N- @
          5        9       86

fristz

thx4sharing