[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7 k1 j$ E$ U' p9 r6 |9 A( _, x, a
規則
; i, w- N5 w* g/ P只何用100人搬100塊磚,不能多也不能小...5.39.217.77:8898- f# ?% }: W; D" i
100人當中有男人、女人同細路仔4 g8 `* ^, ~5 D! \( f
1個男人搬6塊磚0 ]0 K  Y# p5 O. Y; ?( c& D8 G/ D
1女人搬3塊磚
* _( C" y1 g) ^. U* L5.39.217.77:88982個細路仔搬1塊磚
) B6 e) X8 I" b+ O**************************************************************2 L2 J, o7 u$ g5 L* E
問搬100塊磚
; T! G8 b8 z  m9 V; P! o要幾多男人、女人同細路仔0 z2 x5 s3 ^6 z2 s5 K
7 B: J  C& I' q( H$ G! C- o# t
答案30號公佈
8 l' @7 j! J! m. q3 q% m公仔箱論壇8 |2 E& T6 `2 |+ l& ?. d/ _
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.
- ?" v3 E  y4 d* z8 O% yLet x = Male, y = Female, z = ChildTVBNOW 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。1 k& v) w* y; r; J/ J3 G2 c) w' d
6x + 3y + z/2 = 100   Formula 15.39.217.77:88985 k2 `' L5 z# H5 d
x + y + z = 100    Formula 2
) H+ E" t, _9 j; gSimplify Formula 2 into z, we get z = 100 - x - y Formula 3& q& p/ G. N5 O) [6 J' @5 E
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 48 |* T1 _: I" B
Formula 4 can change into 11x + 5y = 100 Formula 5
3 a. p& f$ G3 G! V$ g, o: ^0 P/ _7 CIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇8 y% E9 {8 K% e+ W. f6 S
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.
' I" S. q, F5 h5.39.217.77:8898Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
7 r. Z, r& f/ ^tvb now,tvbnow,bttvb0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 5.39.217.77:88981 J0 W7 ^0 ~+ l& t7 {
11x + 5y = 100 Formula 5

( ?! J8 {, q$ {" H8 N0 x5 p' D5.39.217.77:889811X must be 0 or multiple of 5
# n3 t: Y3 Q# |9 p* W+ o. Ythat meanz x must be 0 or 5

manstein

86 children
  y3 z: ~& C( F6 d) B5 male 5.39.217.77:8898" M' Z9 m$ o: Y" c6 n. u
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tvb now,tvbnow,bttvb* {! ~5 t3 @% \# e- K
          5        9       86

fristz

thx4sharing