! b$ {6 F' |; Q! m9 @答案30號公佈tvb now,tvbnow,bttvb' P* u+ D8 ?1 X( u
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。" c, K* i r/ N9 S
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]作者: twinsdragon 時間: 2007-10-13 05:40 PM
That is a very simple mathematics question. " l/ q% \* J" B8 t- h+ Q公仔箱論壇Let x = Male, y = Female, z = Child # C% M) E9 A) Q! E& n+ w- itvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb; D! c. g! ]; r4 `0 L& B
x + y + z = 100 Formula 2 $ U7 N; z! Z" o5 n' B+ L8 g2 ftvb now,tvbnow,bttvbSimplify 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。! _3 v/ T. k ^( Q
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.77:88988 W2 X" }- |$ [* g1 K4 ^
Formula 4 can change into 11x + 5y = 100 Formula 5 * a/ d- m! K! ~- U8 P公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 6 x( j0 g' J6 x. L- c* K& `$ `; G5 G- k5.39.217.77:8898And 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。; g5 e O+ |3 J8 `' E0 \" v
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 , N' N- J* g; d7 h+ r公仔箱論壇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 公仔箱論壇$ o7 a3 q) e- c) u
11x + 5y = 100 Formula 5
: u* Y: i( b3 A$ r0 b* _- d, I8 OTVBNOW 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 55.39.217.77:8898; A5 K1 M; b. a7 j6 v
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
公仔箱論壇$ o7 a3 q) e- c) u
