That is a very simple mathematics question.www2.tvboxnow.com7 b3 G/ Y' P, _& m# ~
Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb* E$ N8 M4 ^' j1 J" {
6x + 3y + z/2 = 100 Formula 1公仔箱論壇1 Z! f3 Y# A0 T
x + y + z = 100 Formula 2TVBNOW 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。" w( L, _# A. Z! V5 ^
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3www2.tvboxnow.com4 c% t' q3 u6 k9 H
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。" u" x2 {( m$ i9 E2 }
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb$ N! A) l' z* ?
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb' w; M7 g5 ^$ J$ ?6 d6 \
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 = 80.2 \! ^" y4 J- Y; 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公仔箱論壇8 E" B# v* ^( e. g
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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11X must be 0 or multiple of 57 o6 k( n) j* x. {, Z% u9 B0 p/ A
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children: E% f' T H d6 @' y: H
5 male # K r( v c& e- ~www2.tvboxnow.com9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
