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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
1 _( M5 Z* u2 w$ N( o9 C. D# s4 H規則: a: |) ~! W9 f
只何用100人搬100塊磚,不能多也不能小...5.39.217.76- B" \. y; O2 ?
100人當中有男人、女人同細路仔
4 `' L# i" F" S( J' V+ V/ Z" z1個男人搬6塊磚5.39.217.76) n1 i! Z7 t( K
1女人搬3塊磚
& q# O0 k8 Q3 ~/ f% Z5.39.217.762個細路仔搬1塊磚
4 V) c* h& O& q' O- j4 h5.39.217.76**************************************************************公仔箱論壇6 ]. M4 j* r. L; T- O
問搬100塊磚
  L  Q/ U4 T  k; d) z+ a; R. iTVBNOW 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。要幾多男人、女人同細路仔5.39.217.763 s3 b+ Z4 ]8 y9 N+ [- C. @: P

, y6 |% n5 f( O答案30號公佈公仔箱論壇1 T/ \6 N8 |9 G

9 ?2 f, r% y" g( l0 M6 STVBNOW 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。[ 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.
8 z: ]+ d9 A6 C& v7 M! \tvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child
' i* j8 B/ L* ^9 j8 H. m6x + 3y + z/2 = 100   Formula 15.39.217.76/ g; t" N5 `1 w: X" X+ }2 J. X( \! k' C2 g
x + y + z = 100    Formula 2
. b$ n4 [# i4 A* FSimplify Formula 2 into z, we get z = 100 - x - y Formula 3& H' C* b6 W6 v
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
( ]1 t, o$ p9 @, X' g# k公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.760 `) T( O* g- l8 ^0 f
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
1 }( L3 M$ k, |# ^6 c. o' }: U公仔箱論壇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.
5 w/ \2 @% p1 bEventually, 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
0 Q/ w2 |, t: {/ G6 R# p8 i5.39.217.760,20,80 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
: F6 S7 b: y. Q2 f4 r/ p% n8 s11x + 5y = 100 Formula 5
2 G, }" T! n7 _1 m( E' E, H, G
11X must be 0 or multiple of 5TVBNOW 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。5 Q4 Q6 M9 F$ c5 _
that meanz x must be 0 or 5
作者: manstein    時間: 2007-10-15 08:28 PM

86 children' r' _) _1 l8 l, ?
5 male
" n- @( u% Y: t8 q9 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   細路仔公仔箱論壇6 w& `& N; _+ T
          5        9       86
作者: fristz    時間: 2007-12-6 10:09 PM

thx4sharing




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