That is a very simple mathematics question. ! T8 e X" T1 \# c4 {! { pTVBNOW 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。Let x = Male, y = Female, z = Child C" D& o* j% o, d& | p% F5.39.217.776x + 3y + z/2 = 100 Formula 1TVBNOW 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。6 ~2 l; q. Q1 R. Q1 Y* J8 [
x + y + z = 100 Formula 2公仔箱論壇! G* K* P9 M L4 F; W, G9 f( C
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb* F+ L$ j4 X, {
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4tvb now,tvbnow,bttvb# m' Y4 j0 R# {. B2 \% V; \+ O
Formula 4 can change into 11x + 5y = 100 Formula 5 # i! g. p& T, Q8 R- R7 {6 |5 o* Gtvb now,tvbnow,bttvbIn 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。( S& L1 R g% Y1 |* f8 ^% }
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. ) M0 Z2 G4 t6 N7 H3 d- qEventually, 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
5.39.217.77( \9 }% ?% k, q5 a' }8 e: Q) w
11X must be 0 or multiple of 55.39.217.777 f6 [# s( V2 f0 Y$ @4 r
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children : L, n" {7 g# F. l" J% t) D公仔箱論壇5 male * B7 n/ B. Z. Q0 v
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM