That is a very simple mathematics question.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。2 f- C& a! [& D5 l# L6 W; Q6 e
Let x = Male, y = Female, z = ChildTVBNOW 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。+ L, v" s- l: k% E' s
6x + 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 g$ l* P3 z/ C5 T, i# o" H
x + y + z = 100 Formula 2 1 z& d1 {% A* X. x* ]" N5 {5 WTVBNOW 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。Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 8 X, `5 b+ w6 j7 v% r" e公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。7 |; U% n8 t: I* A* k
Formula 4 can change into 11x + 5y = 100 Formula 5 ' V! T* x3 [# G; f& r. l8 Htvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.3 s" B# X9 W- j1 h3 T$ }$ V Z
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. . J9 g; L8 ~% h: K( |! R; O, mEventually, 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,children7 h! l& b7 b. g4 u6 f c9 r
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
7 I6 J6 A2 s' G8 iTVBNOW 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 : ]" j# N: N1 |. T) D+ ytvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM