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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! {7 C, r. _+ k* U7 I" h1 E
規則tvb now,tvbnow,bttvb. } E4 K/ d0 X# i0 N+ c& E
只何用100人搬100塊磚,不能多也不能小...
100人當中有男人、女人同細路仔tvb now,tvbnow,bttvb% L% Y1 K: C! e# v3 ~1 }+ h+ x
1個男人搬6塊磚
1女人搬3塊磚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。9 S4 N/ d5 T/ R; n4 `4 D. [
2個細路仔搬1塊磚8 b+ c- ?& }' Y* L% j7 Q5 D( w
**************************************************************% ?9 _& K8 z- z! ~7 i
問搬100塊磚; C% r! S! ~% K( T1 U4 \ c) K
要幾多男人、女人同細路仔
5.39.217.76+ z& d! Z- s7 B2 u) c
答案30號公佈公仔箱論壇4 a+ _) v& k1 P3 O5 ]

[ 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.
Let x = Male, y = Female, z = Child公仔箱論壇9 O$ p7 N8 H; D$ s4 Y
6x + 3y + z/2 = 100 Formula 1- N6 M% e0 [) |1 M
x + y + z = 100 Formula 2) R9 W: e+ \6 D' s/ d% O
Simplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.765 k/ a* z9 `. t' U
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 44 q( m: ^/ z" p" R* ^( v' S4 f/ A
Formula 4 can change into 11x + 5y = 100 Formula 5/ J: q2 Z. K) P0 B. J9 x
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
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.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。( z! \1 r: \; Q* b% B/ a
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& L- r# [9 r' `
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 tvb now,tvbnow,bttvb0 E o8 }$ l5 ]; U* o2 H
11x + 5y = 100 Formula 5

11X must be 0 or multiple of 5tvb now,tvbnow,bttvb: H6 |7 m$ R& X" P3 |
that meanz x must be 0 or 5

作者: manstein 時間: 2007-10-15 08:28 PM

86 children- U6 W' Q# Q0 B3 N; \9 {6 Y
5 male 5.39.217.76! |- o$ e9 H2 K8 j, @" h
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& ?# D/ c, A8 X7 P% m* q2 ?$ N# \
5 9 86

作者: fristz 時間: 2007-12-6 10:09 PM

thx4sharing

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