[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5.39.217.772 k3 {! \- j4 U  P! m
規則
) L+ i' _6 g5 jtvb now,tvbnow,bttvb只何用100人搬100塊磚,不能多也不能小...5.39.217.77/ I# P1 W7 g; q6 q1 \: H
100人當中有男人、女人同細路仔tvb now,tvbnow,bttvb9 K' Y" g9 ^% {4 w0 G" q
1個男人搬6塊磚
+ o( T4 V! Y7 s公仔箱論壇1女人搬3塊磚
/ a& \- g* p2 E  g, _( D& \2個細路仔搬1塊磚
8 ?. @/ x" k$ Q4 A# O. t- w' m: S5.39.217.77**************************************************************公仔箱論壇6 V6 \* U, x& C& ?
問搬100塊磚) ?! L2 n3 d. `- g1 ~
要幾多男人、女人同細路仔
  _% w  _4 C0 Z3 A5 M: l9 W3 q8 p9 w公仔箱論壇
  Y( r. E  @/ p$ S* y答案30號公佈3 c1 T/ f9 }3 N2 z

4 X2 T* B8 x  Z% f  H* O; vtvb now,tvbnow,bttvb[ 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。0 I+ q) U6 M6 X# b/ V; }
Let x = Male, y = Female, z = Child
* u/ r! C% I3 R6x + 3y + z/2 = 100   Formula 15.39.217.77' i5 u$ P" z  k5 H$ l  p$ U8 g2 Z
x + y + z = 100    Formula 2
" [& t1 B+ |8 |; Rtvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb, x" u# R8 Z3 O- d# `" m0 m
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4% R' E3 h* y4 r, p( X# Q' |  n. T
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.77# b3 l$ b6 k) e/ N
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 V3 H+ R! p! D! @- ~9 c$ o
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0 t! |- ?, X3 I/ N' C- v
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
3 G/ \! s1 N8 Q0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 0 ?0 |, P' e  j) o
11x + 5y = 100 Formula 5

$ A5 k) j5 T& V& K" itvb now,tvbnow,bttvb11X must be 0 or multiple of 5
* q0 b" p, l7 T0 T- w; o) ?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。that meanz x must be 0 or 5

manstein

86 childrentvb now,tvbnow,bttvb6 @5 Q! N9 k7 N3 P5 T
5 male
' T  U& P1 }0 D1 L9 l$ O" Z" b9 x9 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5 `, c5 q' ~4 `- d  ]% v7 A+ p( h
          5        9       86

fristz

thx4sharing