That is a very simple mathematics question.tvb now,tvbnow,bttvb8 k1 z# _! n3 p/ T1 E5 H
Let x = Male, y = Female, z = Child 9 b' {3 H- b" {公仔箱論壇6x + 3y + z/2 = 100 Formula 1 & b; G/ d+ I ~( \0 S6 VTVBNOW 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 2 ' q' m- q# G& p' z* Y5 q5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 , q+ N: {' n- X w公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.76/ L" l2 e. x) A2 j$ w
Formula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇5 u+ P. d+ @, b) m. Z
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.( g M: M, `, l% @( [3 P2 e! k- K5 N
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.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。9 c( D' _) Z" E+ J( y% H
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
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。. l2 x% H! k, D1 Y7 ^
11X must be 0 or multiple of 5 5 W. _( o0 Y, t' Y* Z# j' Wtvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children1 R, t* m4 n& ^: R# O
5 male 公仔箱論壇4 P" }) a' b4 p' T9 _
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM