[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5.39.217.76$ ~1 D+ c* M  Z( y# {/ D4 t
規則* e6 O* u- U+ Q' K% l. n
只何用100人搬100塊磚,不能多也不能小...
4 [( [& K9 L$ ^6 U2 z" g100人當中有男人、女人同細路仔
: S" ~! v+ W- w6 a6 q7 B6 |1個男人搬6塊磚
5 W1 K1 R% S" g. Q, U4 rtvb now,tvbnow,bttvb1女人搬3塊磚
+ B8 g8 g  y* f- Y$ _$ P% i公仔箱論壇2個細路仔搬1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。  i8 ]$ M9 d2 x5 B: y
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0 k* R; j& i6 n$ L- _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。問搬100塊磚
. I( i) U5 {  a& C+ f公仔箱論壇要幾多男人、女人同細路仔' X- f" `0 b& {$ V# P( M3 Z* d

% N5 B5 w' h# C" n答案30號公佈tvb now,tvbnow,bttvb" T8 K0 R2 u$ ^! v) f

# f' A0 H9 t" s/ p4 J[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.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。  q3 H1 p- O7 H' Z
Let x = Male, y = Female, z = Child
6 |+ [* o4 K5 i& p* C9 T( |1 o: [6x + 3y + z/2 = 100   Formula 1
! k# v7 U- u( l; }' U2 Vtvb now,tvbnow,bttvbx + y + z = 100    Formula 2
. D  A+ L' w: i# b) YSimplify Formula 2 into z, we get z = 100 - x - y Formula 3: ^) G3 Y/ E; U  \2 e' Y. J% K
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
+ ]# k" p. V8 ^3 [! e) ytvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5
% Z, U8 ]; ^; @( fIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.- A1 O% q( K/ L
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.公仔箱論壇' y, ?: ^3 b% P, u% }, e. s$ q- a
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
' P7 ?5 R. l  y) \* otvb now,tvbnow,bttvb0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 0 Z) U( Y# I  w6 Q6 L
11x + 5y = 100 Formula 5

. w' \  E( m7 i2 ^& t' ztvb now,tvbnow,bttvb11X must be 0 or multiple of 5tvb now,tvbnow,bttvb( {* Z0 K5 E/ h9 n. m
that meanz x must be 0 or 5

manstein

86 childrentvb now,tvbnow,bttvb7 \/ L' S' I3 i8 R
5 male 5.39.217.769 _" m/ X. x) U7 x
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
/ `0 R. g& _9 |( _' Z# o公仔箱論壇          5        9       86

fristz

thx4sharing