公仔箱論壇 - Powered by Discuz! Board

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。; N8 T" ]) H+ `+ q  K
規則
只何用100人搬100塊磚,不能多也不能小...tvb now,tvbnow,bttvb- k; T8 M4 z2 e$ S- \1 q
100人當中有男人、女人同細路仔公仔箱論壇' Q9 x/ v, R( Q9 N2 b4 N9 c9 v, L
1個男人搬6塊磚tvb now,tvbnow,bttvb4 b2 a& t  q. d9 A3 g
1女人搬3塊磚
2個細路仔搬1塊磚
**************************************************************tvb now,tvbnow,bttvb$ K7 S1 k! @! O! r8 }) C! X' Q, c
問搬100塊磚: s2 c- i/ C* P0 y  d' C
要幾多男人、女人同細路仔tvb now,tvbnow,bttvb$ B0 P) G+ u, s. ~, F3 G# L7 a
8 ?3 E( f  u1 I4 {2 p$ {4 U
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。3 X7 c2 Q6 F  S; r/ h( x2 I8 }
[ 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.' f; r/ S7 s+ h2 K+ r9 S
Let x = Male, y = Female, z = Child1 ]$ C0 k, K. h/ Q8 O
6x + 3y + z/2 = 100 Formula 1TVBNOW 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。/ e4 K' D+ ] S) m# }
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 4tvb now,tvbnow,bttvb, w# v0 Q# W' [# h4 t
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.
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.公仔箱論壇5 V. a/ h8 B: i" |5 E, V/ O
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 tvb now,tvbnow,bttvb+ L6 @( E( C6 h0 Q
11x + 5y = 100 Formula 5

; \3 W; z/ _& R8 V3 E" L
11X must be 0 or multiple of 5
that meanz x must be 0 or 5

作者: manstein 時間: 2007-10-15 08:28 PM

86 children公仔箱論壇; V$ t7 |4 b& C6 }/ L- P% N5 j
5 male 5.39.217.76* V8 d0 O. q$ E9 k3 Y9 I
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

歡迎光臨公仔箱論壇 (http://5.39.217.76/)