[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
" @/ b8 b7 s, O5 ?) X  H$ |  R公仔箱論壇規則公仔箱論壇& ?6 a, ~& e9 U+ s8 e% E
只何用100人搬100塊磚,不能多也不能小...
; G# A9 F8 e4 i/ l0 v100人當中有男人、女人同細路仔8 ~5 ~6 C% L% {, S
1個男人搬6塊磚5.39.217.77:88980 r* n% x$ T8 d
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。" n. N9 Y+ [) D( z6 I
2個細路仔搬1塊磚
+ a- M* S! c! L* m  _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。**************************************************************
7 ]7 A9 i9 u+ ^! `, [. @5.39.217.77:8898問搬100塊磚
' I1 I2 O+ l; _' P6 r要幾多男人、女人同細路仔5.39.217.77:88988 Z  L6 \8 ]6 F: Z
5.39.217.77:8898& h# B& }0 C1 D$ R; [' H
答案30號公佈/ L" X  i1 X$ N8 ~+ n& k* i
tvb now,tvbnow,bttvb) f, z, H9 z: j9 s$ q$ x0 Y& n1 v
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.
! b. \, H* r* E( q+ jTVBNOW 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。Let x = Male, y = Female, z = Child
8 c8 o! x3 F0 b! N5.39.217.77:88986x + 3y + z/2 = 100   Formula 16 r- O1 L& c9 G  v9 Z5 o& w& M- V
x + y + z = 100    Formula 2公仔箱論壇+ c" D9 M; a5 l$ Z7 l6 _# [- R) E
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇* y1 ~8 [4 m$ h) p9 I
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
7 K" t1 n& G3 Vtvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇) Y0 D2 N8 X2 l
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.4 r* d9 t" T1 a" s( x5 c$ e5 n" w8 D
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.% D# ^1 L" [, Q, p+ K9 m. F
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
3 v* ]% a0 W& P5 Z8 C* A$ e4 T公仔箱論壇0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
, m- Q* h2 D7 O2 S* V% g( r公仔箱論壇11x + 5y = 100 Formula 5

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11X must be 0 or multiple of 5
) t8 b3 p, G& f6 V; T- _0 ^that meanz x must be 0 or 5

manstein

86 children
0 A! _$ h) @0 Z+ ^tvb now,tvbnow,bttvb5 male 5.39.217.77:8898, Q, B: |8 E  b$ ?$ r; I+ ]' c
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。, N# H; X/ b5 X8 k8 J& h( f8 D3 n
          5        9       86

fristz

thx4sharing