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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
規則5.39.217.769 r" ]! p6 {( A; m1 p1 x, b
只何用100人搬100塊磚,不能多也不能小...5.39.217.76' e$ m0 G7 Z9 W/ w
100人當中有男人、女人同細路仔
1個男人搬6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。3 n! n+ B* {' W% V0 m- T }
1女人搬3塊磚tvb now,tvbnow,bttvb! L. i% f% Z- |& q2 ^
2個細路仔搬1塊磚5.39.217.76! D, N& |$ L! m9 U# v; g" `
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問搬100塊磚5.39.217.760 s5 N s5 L5 H
要幾多男人、女人同細路仔tvb now,tvbnow,bttvb; K5 a2 V* P: Z( D) V- A& C. b3 f

答案30號公佈
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。- r+ O& m1 X8 [4 v5 S! T! b; J! l4 ^
[ 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 = Child5.39.217.76' N; B1 r! L2 @0 P
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb1 ]& a7 i( a8 m) a
x + y + z = 100 Formula 2
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇- {6 s# E9 h9 E4 \2 u( |2 g
Formula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇- n2 @5 ` n" R* q6 a
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.
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
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 7 Q6 A+ C2 F( v* [) d5 f5 Y; ?
11x + 5y = 100 Formula 5

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。6 f. r4 R: ?) \3 l! v
that meanz x must be 0 or 5

作者: manstein 時間: 2007-10-15 08:28 PM

86 children
5 male
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
5 9 86

作者: fristz 時間: 2007-12-6 10:09 PM

thx4sharing

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