That is a very simple mathematics question. & p5 `& {" ~) f+ [公仔箱論壇Let x = Male, y = Female, z = Child * k; e9 o. Z" o+ I: F) @% Ltvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1 ' G' T0 X$ ]$ N3 A' |. Xx + y + z = 100 Formula 2 : l) ?9 ~( C; j7 Q( W m, t; CSimplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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。8 e2 U. M; |4 k0 C
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4( O; d+ d+ q- _7 Y2 j. N; f. ~: e
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb$ O2 A4 P" x0 W! p7 n
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ; |, u, K, w0 s1 g5 Y E0 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。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。4 q" f0 o( f# r! j6 ~
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! M+ D, a5 Q, S5 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 % m" t' o' H0 y, n/ B% aTVBNOW 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
: v( l$ Z9 [" ATVBNOW 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 must be 0 or multiple of 5 ; Y. v0 m7 S. [: ~, ?公仔箱論壇that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 9 d' y3 ^. J5 T5 A6 R; C3 g8 mtvb now,tvbnow,bttvb5 male 5.39.217.764 u- N. c$ D& D8 s6 R
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
