That is a very simple mathematics question. ' y: q$ x' p% \3 K" s) jLet x = Male, y = Female, z = Childtvb now,tvbnow,bttvb1 b* }" F K1 s4 j% {
6x + 3y + z/2 = 100 Formula 1 0 H- \0 O) x, M- F$ i+ u$ A$ ^公仔箱論壇x + y + z = 100 Formula 2 f& x. g; n0 O uTVBNOW 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 35.39.217.765 k% s7 q8 U& I+ ^
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 , q+ O1 F3 m/ f" Z3 T5 _9 o, K5.39.217.76Formula 4 can change into 11x + 5y = 100 Formula 5 , C- [2 u6 u( b! _7 s/ G- d) Gtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. . N; q V5 Y) j' X6 R+ qtvb 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. ' ?, o3 R+ o! { m! ^5 a! FTVBNOW 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。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
原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 ) k, r; s' I( {5.39.217.7611x + 5y = 100 Formula 5
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11X must be 0 or multiple of 5tvb now,tvbnow,bttvb p- |) h6 h; B C" h g( x
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children : J" j6 `9 V: L( F* ?7 kTVBNOW 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。5 male 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。' N, u: m( |# W/ z8 n+ ^
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
