That is a very simple mathematics question.tvb now,tvbnow,bttvb. U' e5 c7 t+ A2 s
Let x = Male, y = Female, z = Child 2 `( T3 {# \8 p+ T# l. {0 \( }9 ^6x + 3y + z/2 = 100 Formula 1TVBNOW 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。 r3 H- b, y2 q* `. h
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。( t% z! K& R' M9 M* M* T3 m \8 C
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ' l" ^, {6 W( i( y0 RSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.766 _# S" B( a H5 w8 \" L2 m! D
Formula 4 can change into 11x + 5y = 100 Formula 5 1 `0 ~0 I* d) ^: H9 i. ?tvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.; ^4 m: z2 u, ?- Q1 g* G
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 = 80.8 Z/ W* `. |& e
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公仔箱論壇- z& M, h# E" L) Q$ y
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
$ ]6 {- Y; h: ^5 s2 ~$ D2 e( U公仔箱論壇11X must be 0 or multiple of 5 . j: s c- k0 D* t) t1 e# m4 Vtvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
