That is a very simple mathematics question.公仔箱論壇- v# u0 {4 S/ m. i" E2 U
Let x = Male, y = Female, z = Child: S: R/ w( E6 S4 @7 v
6x + 3y + z/2 = 100 Formula 1 + j& }( R. O. G- bx + y + z = 100 Formula 2 ' `% a( w% \. z( h7 y: U公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 1 F% `/ y9 f$ F' lTVBNOW 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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.76- C/ D% c/ [- @4 a4 g; B) _
Formula 4 can change into 11x + 5y = 100 Formula 5TVBNOW 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 m/ w, |! ?5 G; n
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. % Y, Y0 P& ]* \( e/ oAnd 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. q6 q/ ?" ]' T9 k# v! Etvb now,tvbnow,bttvbEventually, 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
5.39.217.765 D( P5 l7 p' R( T6 l7 y: a2 i4 o2 Z
11X must be 0 or multiple of 5 R4 A; l4 B, A7 \6 D4 M/ U
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 5 W/ V- |( Y" C' L" a5.39.217.765 male 1 r0 d$ ]. T) `9 y# p8 [
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
