[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
. y2 G6 z6 M* b/ ^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。規則
! G: h7 S, Q! E: B# \7 X9 D! i公仔箱論壇只何用100人搬100塊磚,不能多也不能小...
- X4 B7 s: S: m$ w4 j: ptvb now,tvbnow,bttvb100人當中有男人、女人同細路仔
* z( l& G* ~1 g3 i3 l$ p5.39.217.771個男人搬6塊磚
8 I. D0 @2 N5 E& T" ~5.39.217.771女人搬3塊磚
( @4 q5 e% y, h; u- G6 N4 K1 Qtvb now,tvbnow,bttvb2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。$ t$ n6 a6 I) o5 D
**************************************************************公仔箱論壇+ `: i; X: t& @7 v2 j
問搬100塊磚  l' o/ Z" L& g' S
要幾多男人、女人同細路仔$ |2 I( i0 r9 d& d: m1 a0 `+ j( V
公仔箱論壇/ R$ o  b! H' Y7 C1 i
答案30號公佈
. Y# ~6 r: J/ z9 e  q& s5 r
* q: C7 n+ [5 o( u& [[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.5.39.217.774 m& I2 g% o+ j# F) V: `; ~+ X! k( O. D  t
Let x = Male, y = Female, z = Child
) U6 k  J- q5 V. [; |6x + 3y + z/2 = 100   Formula 1
  A3 g8 s" V+ h5.39.217.77x + y + z = 100    Formula 2tvb now,tvbnow,bttvb% G- h, [9 |. B( \
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
2 e$ _! ]# x' j3 Z2 D+ pSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
5 l8 L1 W) @8 a  m6 U( b# FFormula 4 can change into 11x + 5y = 100 Formula 5
( s1 n/ N2 f; @) Q0 @, h! _: NIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.775 `0 Y0 y1 ^9 g
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.
* m* w5 M& W0 @! }tvb now,tvbnow,bttvbEventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
' x" i. |. O- a+ F- w9 v# p4 p4 E8 g0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 公仔箱論壇4 s. p, R. m) ^: u' I% k# O# H
11x + 5y = 100 Formula 5

6 i# P4 _* }2 W! U9 F& Y) j
11X must be 0 or multiple of 5
& I: E: \* K5 q+ hthat meanz x must be 0 or 5

manstein

86 children
) y2 g$ f6 s8 atvb now,tvbnow,bttvb5 male
2 d' T4 X! C1 Y& h9 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
" T# k; n4 {( q% J* j/ V          5        9       86

fristz

thx4sharing