That is a very simple mathematics question. ! [; N1 q9 N2 x# x& C3 j( K0 P9 C* O公仔箱論壇Let x = Male, y = Female, z = ChildTVBNOW 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。" Q! _$ g% E5 K: _" l
6x + 3y + z/2 = 100 Formula 16 a: @0 r& `( u4 z/ ~
x + y + z = 100 Formula 2 $ x( w& |7 O: y! Q6 {Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ' D$ Q$ i( t- T: @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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 - Y4 ~ g: |6 C/ k ~0 yFormula 4 can change into 11x + 5y = 100 Formula 5 ( t- |4 q) j6 ~$ A1 Jtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ) h4 f1 X# J- K1 j5 ctvb now,tvbnow,bttvbAnd 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.tvb now,tvbnow,bttvb3 M. ~9 e+ P: \" ?) X1 ^
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 . Z# W' B/ l5 a _% s- e$ 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。0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM