That is a very simple mathematics question.tvb now,tvbnow,bttvb, P9 `5 D4 S! x0 E' j1 \4 f. r9 f) j
Let x = Male, y = Female, z = Child " v; [" Y* i6 r8 ?. Itvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1 5 K3 {# L4 B" P9 {2 l公仔箱論壇x + y + z = 100 Formula 2 3 @, y9 q. t: l5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 - z. E' g: o" K I' V2 m0 `Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 5 l( D2 E, s* [$ r; R公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5 , _$ S* j1 y4 i6 h! \1 rIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.76% G- w: v# @% h* `; m( |4 j
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。# t1 u, n$ S- l7 f1 s# y6 Y7 `3 N1 p
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,children0 @+ [9 M" c, t% s7 B7 e, q. \4 k4 X
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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。2 X' n$ y0 X& \& R
11X must be 0 or multiple of 57 u! R) r" i4 k8 N' c* Q. z
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 6 W$ S4 y; j6 g- ~公仔箱論壇5 male ; w8 n; ]1 y g9 P; |公仔箱論壇9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM