That is a very simple mathematics question.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。. s" K9 i- T( s F" F( z
Let x = Male, y = Female, z = Child5.39.217.76. I5 ?9 L# g, \' J( ]8 L4 {' k
6x + 3y + z/2 = 100 Formula 1 - [. k9 Z" }: Z6 g3 b5.39.217.76x + y + z = 100 Formula 2 1 Z! x5 ^8 e" ]& j$ l& KSimplify Formula 2 into z, we get z = 100 - x - y Formula 3 1 `- s8 t3 v* Z6 A9 i+ `' A5 _8 nTVBNOW 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 ( f. B: |" T1 s# 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。Formula 4 can change into 11x + 5y = 100 Formula 5 8 T& F9 M4 n* V% y5 p5.39.217.76In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. * i6 P- h' f Q7 r2 G m7 D, a0 btvb 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 = 80.3 L- `% E( D; `
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 5 b' j- x9 T0 B' G: f8 [0 d0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM