[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tvb now,tvbnow,bttvb9 e1 `1 w4 J! ?( {4 X, s( E9 i
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只何用100人搬100塊磚,不能多也不能小...tvb now,tvbnow,bttvb5 x# y' M4 b" @6 M
100人當中有男人、女人同細路仔
; @7 a1 o5 Q/ _8 r7 h* [( N5 R& Vtvb now,tvbnow,bttvb1個男人搬6塊磚+ l+ G8 N& W3 k3 K  Y
1女人搬3塊磚. P4 K$ \; Q; R$ M2 u4 v
2個細路仔搬1塊磚公仔箱論壇; i* ^$ Y8 J# p! k8 |/ C. ^" {
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; f7 e! |. x% |* @& O0 y; j問搬100塊磚
8 T; C# P/ n& `1 u: Y5.39.217.76要幾多男人、女人同細路仔公仔箱論壇; q5 g- m$ R; ]0 {) S, y- Q) M, Z
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。4 e% X  }. w. m  D0 b
答案30號公佈
1 f; f' b. T# {* L+ vtvb now,tvbnow,bttvb5 y  X8 u: w8 ^  r/ |$ E$ E
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.
! {# O( R$ W' Gtvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child
: l4 c* v( R( D& Jtvb now,tvbnow,bttvb6x + 3y + z/2 = 100   Formula 18 q( b' U+ ]6 H1 `
x + y + z = 100    Formula 2
( W' g) x, `8 F% ~' Z( Q- h# o' N8 `tvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.76* z0 f5 o* W3 J, c6 |3 {/ Z
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4/ s) x1 d+ R8 B% ]8 o: x2 Y# j
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.76: I# f8 K* }" }, _
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇1 X) C0 q+ C- g3 I; j) |6 m6 b! Y
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.
, H- X  _: T5 d6 l; h2 p) uEventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children+ u/ B- u% p4 V# U2 o0 ?
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 公仔箱論壇/ C6 [+ A6 ]  B. {0 ~4 I
11x + 5y = 100 Formula 5

( _3 V) }1 D4 N2 n4 K11X must be 0 or multiple of 5
' K7 i; P+ J( f# Ithat meanz x must be 0 or 5

manstein

86 children6 P8 F- v$ l& F" M5 F
5 male 5.39.217.76$ B8 z7 w6 D" t, R/ H1 b* x. L3 v5 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

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答案:  男人   女人   細路仔+ p: `, a' b1 c) f& q& f
          5        9       86

fristz

thx4sharing