That is a very simple mathematics question. L/ B" Y. I6 ?8 L# ^公仔箱論壇Let x = Male, y = Female, z = Child公仔箱論壇! ?9 P O j: ?5 w4 U
6x + 3y + z/2 = 100 Formula 1 8 V6 j2 j6 a6 ?# q4 l9 @& BTVBNOW 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。x + y + z = 100 Formula 25.39.217.760 T' g& v' i: l# e
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3& t0 \& m, u, ]5 L7 ` B+ W. w
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇, b/ W1 \$ w* e: V! _. @6 z
Formula 4 can change into 11x + 5y = 100 Formula 5 0 z, ?: ^9 R5 y1 w. M9 n% Ttvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. - ~# [3 X0 F2 k7 x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. 0 a! ^* T/ @9 F- w9 g% k0 HEventually, 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,childrentvb now,tvbnow,bttvb |( {8 N0 I7 M& m% A
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
; ^' r9 { n2 c1 [公仔箱論壇11X must be 0 or multiple of 5tvb now,tvbnow,bttvb7 ~6 Q" {5 i& v4 l- y: s* H: J) I3 S6 x
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children ' ~9 s: Y1 Z: t, s% GTVBNOW 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 male 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 H4 }. ~, G1 {! z
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
