That is a very simple mathematics question. ! i3 ], D/ e3 t$ O! f+ S8 |2 r, mLet x = Male, y = Female, z = Child 8 q( f4 x/ E0 ]4 T. q/ n) k9 Q公仔箱論壇6x + 3y + z/2 = 100 Formula 1 $ N H. E- i0 y. E7 M: i5.39.217.76x + y + z = 100 Formula 2 ) z2 {0 C# w0 T: t+ S# `9 ITVBNOW 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。Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ! J4 B1 p) E$ s8 XTVBNOW 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 ( }2 G1 L0 ]) m, v3 B+ ~4 F公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5) H n$ p+ g- d* b4 s( Q2 c' _8 V
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。0 J a: P5 _( ^) ~3 ~% U9 Z
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,bttvb# C5 U' B) |7 L; q
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
- y' L! U. {4 N! ~1 s" T& {11X must be 0 or multiple of 56 f* ~, ]. N: Z$ w: v$ w) q) f% w
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children& c7 V: R. i P) J0 C' p
5 male ) m; ]0 p* X+ v# Q- \+ ^9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
