That is a very simple mathematics question. 4 A! x6 n) J( y' Q1 _6 J4 a公仔箱論壇Let x = Male, y = Female, z = Child $ B T) C" e' @" N {6x + 3y + z/2 = 100 Formula 1 + f: A1 i1 t& X/ L+ v( M3 J* 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。x + y + z = 100 Formula 27 a* N4 X4 h8 F1 q9 i% J
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3% a, c* b6 {8 _+ Y5 S% ?; V& Z& N
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 7 i# J" x0 H% _" |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。Formula 4 can change into 11x + 5y = 100 Formula 5 1 j8 N. p8 i8 t! ~$ utvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. $ T& z* L _; Y5 h/ {6 y# l公仔箱論壇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. $ Z+ G' B2 x$ q0 ~4 A$ l' z公仔箱論壇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,childrentvb now,tvbnow,bttvb" [4 K1 z+ S, ^3 O% t9 {4 S
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 / l. M, M' m, o# h' L" 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。11x + 5y = 100 Formula 5
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11X must be 0 or multiple of 5 ' M' M# J. q+ mthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 childrenTVBNOW 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。1 P5 W; ~! U0 U% N' e5 p, _, g
5 male $ K, O2 e, w8 [8 ?: _/ ?* \9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
