That is a very simple mathematics question.5.39.217.762 I5 y" k$ h2 Z3 s& T/ |9 M1 c
Let x = Male, y = Female, z = Child / F H: a$ ?8 C# rTVBNOW 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。6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb& J5 z g. F7 {, m* a+ s2 c' 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。' Q5 d2 V: v p9 w W+ w. V
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb) I" v9 x& }- L) ~0 K/ l* d+ V; z; ]0 e
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 B* L3 N: x, I6 }% @0 k. e6 Q3 H& m7 lFormula 4 can change into 11x + 5y = 100 Formula 5 / _! P% K; N/ `: X s: Q: j$ o0 ~公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.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。+ p+ D& c, `) P9 y k: L& S" o
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 = 80.9 e( \) w9 S& S0 `" {( V
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% p, L' {: e6 u5 q6 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。0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM