That is a very simple mathematics question. 9 m+ Q4 d4 n# n3 y; w0 LTVBNOW 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 = Childtvb now,tvbnow,bttvb- E5 m: x R# V- c/ |& ^* J1 N
6x + 3y + z/2 = 100 Formula 1 7 G h! c# V5 }- s9 h) J) {# MTVBNOW 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 2os.tvboxnow.com! [! ^* ^ O$ Z2 C6 `
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3/ L% ?* S' _: P8 s; X2 E( m6 }
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 ^% u2 P8 h0 ?9 J/ j8 r9 ^os.tvboxnow.comFormula 4 can change into 11x + 5y = 100 Formula 5 ; y! A5 N/ z/ m0 v, ^9 t; {% j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。; G S1 j2 M& ? ^' O8 ]
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.tvb now,tvbnow,bttvb3 d* X' {9 ~+ ~8 ~. e" h: `' 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
man,female,children5 j: P6 y" @& n
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
