100人搬100塊磚$ p! _0 b( m0 Z& z
規則$ w) E9 I+ v; a; b
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。& [' B% v2 m' O. h, F; U$ L
100人當中有男人、女人同細路仔 6 Z$ A' F4 h% h R9 k7 n2 k) r5.39.217.761個男人搬6塊磚 8 X" n1 O# N6 V% r/ r公仔箱論壇1女人搬3塊磚 4 A' Q3 @2 B% h5.39.217.762個細路仔搬1塊磚8 Q$ D: K9 G7 n& u! B$ p
**************************************************************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。: R6 {/ s9 b! X; l! \5 r9 V a0 c
問搬100塊磚 ; P3 K- @$ F- o2 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。要幾多男人、女人同細路仔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。2 M8 Z- A! z, n; T P
5.39.217.76, r* X9 |7 k8 v. N! p
答案30號公佈 7 j4 W* t/ `" \. f' P6 a公仔箱論壇 M' [' z- j+ e[ 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.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。. @8 }) S" l$ L- }
Let x = Male, y = Female, z = Child5.39.217.763 `- K/ I# x j" I5 X
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb8 b' i ~3 f/ `9 T' f
x + y + z = 100 Formula 2- N6 g+ C# o! W7 A
Simplify Formula 2 into z, we get z = 100 - x - y Formula 34 |5 S h9 k" y7 P3 m# S N, e/ X
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 47 Y- X2 ^& ?5 |6 k
Formula 4 can change into 11x + 5y = 100 Formula 5 " g ^$ L; p8 W/ M, c) B2 M' [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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ! Z4 {1 [# g6 o; b( |公仔箱論壇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. o" y4 b. E% o; T. C/ R! c
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,children5.39.217.769 W( F# H( x) e3 n
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 : W4 \4 C, Y, f公仔箱論壇11x + 5y = 100 Formula 5
3 q" ?, K9 a! `2 X+ Q, g2 B2 S
11X must be 0 or multiple of 5$ ?8 T( J% E) c: \
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 4 l1 c) z: l5 i3 c9 f5 d3 U' _) l5.39.217.765 male 5.39.217.762 H. ]* N' {& D* ~/ G
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
