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[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
100人搬100塊磚
+ q0 C! W" r, ]  H公仔箱論壇規則tvb now,tvbnow,bttvb$ j0 d/ p( U; m# L- X5 `3 C
只何用100人搬100塊磚,不能多也不能小...
& b0 m) L- ?* b. g5.39.217.76100人當中有男人、女人同細路仔tvb now,tvbnow,bttvb- m9 h( \  o7 {1 }
1個男人搬6塊磚
0 K+ P$ k5 N7 |2 a8 `! N. c) ~# d5.39.217.761女人搬3塊磚
( ]' e- D6 j$ y8 e; r8 ?公仔箱論壇2個細路仔搬1塊磚tvb now,tvbnow,bttvb+ c7 l! `+ s) z! T7 |
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7 n9 g, ]; l7 k" o1 c/ A7 q! e5 i6 s+ KTVBNOW 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。問搬100塊磚
9 M* k. y& C& b" V# j0 ?- {% K要幾多男人、女人同細路仔; M2 v9 I- r$ e8 e; R, h# Q

! k( O! o% ~# G7 }. L公仔箱論壇答案30號公佈
" Z( D5 W# `2 |5 B1 j. W
7 _% t; o- N- v6 z5 v[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]
That is a very simple mathematics question.
1 L$ Q4 s0 V+ k) i" D. J" z  G/ VLet x = Male, y = Female, z = Child6 n+ \% t2 ]) f$ O1 ~
6x + 3y + z/2 = 100   Formula 15.39.217.76$ B; m1 t; R0 N# g% g' ]
x + y + z = 100    Formula 21 V: Y) r! G( d, q6 n+ Y
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
9 j* G# k3 d2 c. e1 t; gSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
5 j; U2 T* U/ v- S公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5
) S% a  m9 B: W7 Z0 Q- d7 PIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
. O4 m. M0 f6 t! ^( K0 e+ 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。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.
# J1 e3 ]9 x1 y- `" TEventually, the answer is 20 female and 80 children and no male.

two answers

man,female,children
+ ]# _* D: \- Q/ u' z! f公仔箱論壇0,20,80 or 5,9,86
原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 公仔箱論壇. O5 f% @! [4 u* k3 b. ~
11x + 5y = 100 Formula 5
$ f2 D0 ^& ?  L( M9 x' ~+ e
11X must be 0 or multiple of 56 j. V2 N8 d( v; o% e) ]' {
that meanz x must be 0 or 5
86 children
8 D8 S( r% `) Y2 a8 j3 D7 b+ }5 D5.39.217.765 male
; f; K- Y7 Z" C/ M5.39.217.769 female
数学问题,线性代数,我算算再说
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
5,9,84
想知道耶
答案:  男人   女人   細路仔
+ C! G( X& v6 tTVBNOW 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        9       86
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