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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。. K: R" X6 C* T& d6 A! G0 a
只何用100人搬100塊磚,不能多也不能小...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。4 V3 H/ z* @) V% i4 ]' H
100人當中有男人、女人同細路仔5.39.217.76% i' X' y: u R8 V# O1 m; V
1個男人搬6塊磚& K% v5 k4 U! Z% a7 v+ ~$ {) |% E
1女人搬3塊磚
2個細路仔搬1塊磚: v) S& K% o- f8 \2 D- J/ X
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問搬100塊磚
要幾多男人、女人同細路仔
tvb now,tvbnow,bttvb. [2 }9 S+ u' \5 ^1 j4 u/ Q
答案30號公佈tvb now,tvbnow,bttvb& T" s, K( _( Z* a7 ~

[ 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" k! Q) ]. Y$ {) C
6x + 3y + z/2 = 100 Formula 1$ k; Z0 @5 X, K! M
x + y + z = 100 Formula 2
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb1 `) b; b7 B: L1 y9 D ?, C
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.766 A' Q' Y$ [5 a, E$ ?/ Y
Formula 4 can change into 11x + 5y = 100 Formula 5
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want." K4 w4 b# X% f3 }- I
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,childrenTVBNOW 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。4 X5 Z' ]: r* Y; p8 G5 `
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 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。5 o% F: R& Y, x1 {( P1 {* D1 Y( R6 n
11x + 5y = 100 Formula 5

11X must be 0 or multiple of 5% U# u. Q% D7 U+ {- P$ N. S! n
that meanz x must be 0 or 5

作者: manstein 時間: 2007-10-15 08:28 PM

86 children5.39.217.760 _- @+ `" d& o- O; Q) _$ W
5 male 2 Q% @& p [+ Y: i& U
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: 男人女人細路仔公仔箱論壇( ?9 r% U( j4 F9 C) [- S5 d
5 9 86

作者: fristz 時間: 2007-12-6 10:09 PM

thx4sharing

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