[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5.39.217.762 b$ ]2 q# p; X' z
規則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。$ G* b( i, u& i- M% m( X# n
只何用100人搬100塊磚,不能多也不能小...
1 S6 `2 w, ^. a# K9 Z  X2 `100人當中有男人、女人同細路仔
: R2 h, K" a+ m4 g1個男人搬6塊磚5 O/ g5 F, d- u* H- a
1女人搬3塊磚
' ^8 U3 g# R6 B, {8 k, gtvb now,tvbnow,bttvb2個細路仔搬1塊磚5.39.217.76: }, {* ]0 R3 \
**************************************************************公仔箱論壇: D4 d. l- Y. [7 f! M+ f# {
問搬100塊磚
2 I! i1 f/ w% X8 {5.39.217.76要幾多男人、女人同細路仔
0 `4 v8 S) F# C7 L# r. M公仔箱論壇
: x% j" O4 ], K( @# d, u7 x答案30號公佈
" h; u' a: s' s" g  W- K3 |$ i
+ ?4 X$ V: S. @tvb 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.
) \* p1 q7 a6 x  F' htvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child公仔箱論壇- q3 k* ?# w6 ~1 X
6x + 3y + z/2 = 100   Formula 1
* v3 j4 r0 y' o, b' mx + y + z = 100    Formula 2公仔箱論壇% k3 f, H4 K4 ~9 z: e+ V
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
! Y, h. u9 ^; X5 v: F# vSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
7 C/ L3 |6 n7 m" M- wTVBNOW 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。Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb# i% J4 I5 V7 j% e, o) H0 r: F, S; Y
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
. e1 ?/ T5 s$ ^4 p5 M" _tvb now,tvbnow,bttvbAnd 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* Q( t+ v. r5 E+ l- m2 ^) F/ `# h
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children6 {1 f: L9 d) ]5 ]2 k
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 2 ^+ K, O+ j, [4 O. o4 R( ?- M- x6 z4 `
11x + 5y = 100 Formula 5

' [. |5 l; r. j9 T5 A8 i( Btvb now,tvbnow,bttvb11X must be 0 or multiple of 5TVBNOW 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。& K6 B% D5 {" k- b5 o$ K
that meanz x must be 0 or 5

manstein

86 childrentvb now,tvbnow,bttvb6 A* U9 ]* c- u3 ?4 j
5 male 公仔箱論壇; S# p' M* ]+ `$ Y
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. y; x/ P! S: k: o
          5        9       86

fristz

thx4sharing