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標題: [IQ題] [數學題]100人搬100塊磚 [打印本頁]

作者: 1/5    時間: 2007-10-13 05:08 PM     標題: [數學題]100人搬100塊磚

100人搬100塊磚公仔箱論壇, Y! M6 W' [+ T7 n2 @
規則公仔箱論壇- C. i" o2 B5 w! q1 E% w3 w
只何用100人搬100塊磚,不能多也不能小...www3.tvboxnow.com3 h; l# {8 d& s: C5 g& g1 Y# S
100人當中有男人、女人同細路仔
( P! T& S; `: @# a: _5 Jwww3.tvboxnow.com1個男人搬6塊磚
# ^8 G5 b1 C7 J! `/ `9 ?www3.tvboxnow.com1女人搬3塊磚
1 t, x, n! i5 u- Ytvb now,tvbnow,bttvb2個細路仔搬1塊磚( f; w- w& s1 w( I/ B  M8 k: G
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) T4 D; u  D; w8 kwww3.tvboxnow.com問搬100塊磚www3.tvboxnow.com9 k) Y" l2 u  \' e/ z( \
要幾多男人、女人同細路仔5 {& B6 q0 Q; l
www3.tvboxnow.com* s1 g* m. j4 S" p3 {, ]8 ^6 ~& _
答案30號公佈
5 C4 ~5 o* k$ g8 D! [) S6 c公仔箱論壇9 Z- O3 b# E" h
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]
作者: twinsdragon    時間: 2007-10-13 05:40 PM

That is a very simple mathematics question.www3.tvboxnow.com! k% [: ?' ^* d
Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb0 O8 B, K, z7 l- H, a
6x + 3y + z/2 = 100   Formula 1tvb now,tvbnow,bttvb5 J  {3 Z# Q$ C2 p3 E( o- E. q# q7 a7 Z$ Q
x + y + z = 100    Formula 2
: Y; C' q/ U& `tvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3
3 K4 N$ x- q: c( K$ \  A. f' m* i5 q3 ETVBNOW 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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
( X4 |! }8 n& U4 L4 V$ Stvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5
, B% o- k3 A4 U* j5 e/ t' mIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.www3.tvboxnow.com  w* i# N/ v' 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." m2 w. w/ [7 s, e0 q- M' n
Eventually, the answer is 20 female and 80 children and no male.
作者: alan1234    時間: 2007-10-14 12:19 AM     標題: two answers

man,female,children
! \) j8 ~) s9 P8 [公仔箱論壇0,20,80 or 5,9,86
作者: RyanC    時間: 2007-10-14 10:46 PM

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 2 q/ ], q/ c, I
11x + 5y = 100 Formula 5
0 x2 i( p8 p) n. M0 G/ a11X must be 0 or multiple of 5
/ x; j* w: G2 `www3.tvboxnow.comthat meanz x must be 0 or 5
作者: manstein    時間: 2007-10-15 08:28 PM

86 children
  s# M  `. d( E1 [" J公仔箱論壇5 male
8 V5 f: ^$ @7 D9 female
作者: dafunhei123    時間: 2007-10-15 10:39 PM

数学问题,线性代数,我算算再说
作者: dafunhei123    時間: 2007-10-15 10:47 PM

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
作者: ghjleo    時間: 2007-10-17 04:23 PM

5,9,84
作者: leou2830    時間: 2007-10-20 10:21 AM

想知道耶
作者: 1/5    時間: 2007-10-30 01:02 AM

答案:  男人   女人   細路仔/ A8 {, r; X9 G. w/ E9 x* y: y
          5        9       86
作者: fristz    時間: 2007-12-6 10:09 PM

thx4sharing




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