That is a very simple mathematics question. D# i0 X; v* W8 X" Y6 C2 Z; zTVBNOW 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。Let x = Male, y = Female, z = Child T+ j6 ^7 X3 ^; o1 U% l: @tvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1 9 {; ?5 g! ?% ^3 G3 Gx + y + z = 100 Formula 2tvb now,tvbnow,bttvb5 l5 w3 e8 E2 M4 p- Y+ V
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb6 g8 b: X+ ~( `" Z9 ]5 v2 k+ S3 _2 T
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4www3.tvboxnow.com: _! r' f- V" N2 E* V5 u
Formula 4 can change into 11x + 5y = 100 Formula 5 . V& _/ w' V, J& t# `1 ETVBNOW 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.www3.tvboxnow.com2 \8 \( z( f2 j% ~
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.www3.tvboxnow.com) I {6 U( t6 L) u4 z5 @
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 # t! y3 q K g: i0 |9 b6 @$ ]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。0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
' p/ C+ o0 r1 K5 l. n# Twww3.tvboxnow.com11X must be 0 or multiple of 53 X L+ I+ X# ]. m7 v* s
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children* F, s+ L% N' F9 J% w" q6 a
5 male & Y% V; [$ H, B* y3 ]) w公仔箱論壇9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
