That is a very simple mathematics question.公仔箱論壇9 R/ D, ]" ]4 Y
Let x = Male, y = Female, z = Child( z, W) R8 K: b3 t$ t& c, B2 o9 Y
6x + 3y + z/2 = 100 Formula 1 C# I* x+ e; f; Btvb now,tvbnow,bttvbx + y + z = 100 Formula 2公仔箱論壇. h5 V/ _, a+ ?/ d- q9 Y- f: L
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 C) ^1 x- w: u j
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 43 B9 h: [" N% O/ V) ~5 l7 ?
Formula 4 can change into 11x + 5y = 100 Formula 5 9 e8 A7 r' D+ q* x, ]5 _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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.0 n+ R2 \3 i9 M) n* ]( _$ d
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. $ B6 b5 l# J) ~/ a* R2 ttvb 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
man,female,children ( b) D& q4 _8 H1 B3 q0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
0 N8 [& j0 @8 N9 ?# f公仔箱論壇11X must be 0 or multiple of 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。$ k% V4 d" |7 j) i
that 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。( O) f3 N1 y L4 g
5 male , ^$ M* O* z3 _4 n5.39.217.769 female作者: dafunhei123 時間: 2007-10-15 10:39 PM