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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+ R8 z) l- C% o2 I# l! b2 B+ N
規則  W2 [, m; L: A* z; T
只何用100人搬100塊磚,不能多也不能小...4 j) P8 @- v+ U: c& m
100人當中有男人、女人同細路仔tvb now,tvbnow,bttvb. y" `5 _( E$ P! G4 C2 k
1個男人搬6塊磚tvb now,tvbnow,bttvb. O! h* }/ `- m) ^* E& Y; j( ?
1女人搬3塊磚
3 e0 e: G' \0 O$ T7 UTVBNOW 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。2個細路仔搬1塊磚
  Y  {6 U3 O- t9 U**************************************************************
$ ^0 H4 r6 _, i% g問搬100塊磚
9 N) a! h* B0 a1 d0 }要幾多男人、女人同細路仔
; e) J0 e/ k/ ]9 i* ?- A7 N, `, `
答案30號公佈- M1 d1 F. u* d; f
5.39.217.76) Y9 g3 A# S( s0 G3 b% I4 F$ 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.
6 Y" h2 b9 ^4 G$ u+ q4 utvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child
) j# n3 v" u5 j2 x/ ]6x + 3y + z/2 = 100   Formula 1
  N: i! t3 o( m- E. vx + y + z = 100    Formula 25.39.217.76* }9 t1 j& E% K( G
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
& \9 x3 M' N1 J6 ~& I0 Ltvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
: M3 h& ~$ O) G3 p, @tvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 55.39.217.760 G5 y' |3 r0 K% {; ^* p1 w
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want., p% X+ u2 D6 n
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.
3 M8 r0 D' O2 {. V: vtvb now,tvbnow,bttvbEventually, 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,children5.39.217.76/ C" B; I7 o# a# Z9 j, ?0 |$ n# B
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
& K; ~+ v7 S- t+ A8 N2 {tvb now,tvbnow,bttvb11x + 5y = 100 Formula 5
tvb now,tvbnow,bttvb: I( s. a* ^  W, b
11X must be 0 or multiple of 5$ U* \$ y4 V% J% f9 }; e
that meanz x must be 0 or 5
作者: manstein    時間: 2007-10-15 08:28 PM

86 childrentvb now,tvbnow,bttvb; }/ L+ d  N- e  ^0 I
5 male
  A0 S% J% v0 HTVBNOW 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。9 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
' ^1 F  t3 R' _# U$ Q          5        9       86
作者: fristz    時間: 2007-12-6 10:09 PM

thx4sharing




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