That is a very simple mathematics question.tvb now,tvbnow,bttvb. i% O3 K( G) c7 _; N. U9 E
Let x = Male, y = Female, z = Child ; k, o" o; _6 E6x + 3y + z/2 = 100 Formula 1 6 n' I$ c9 e, r' \! i0 {tvb now,tvbnow,bttvbx + y + z = 100 Formula 2TVBNOW 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 N p) G8 z+ k' |* K
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 4 v6 _. O; d' ~5 W2 }5.39.217.76Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇3 |1 o! g3 l+ O" z n
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb: `4 h1 x& o( i8 k3 @+ X
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. / h" I- c: b1 `* pAnd 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。; G6 ~8 |" o. g/ x5 g9 M5 @6 J
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,children5.39.217.768 G4 H# F5 F. N, k/ U9 W7 x1 ?) l1 _
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 4 `" [; J1 e% a' b- T1 b' Ytvb now,tvbnow,bttvb11x + 5y = 100 Formula 5
0 a1 `" Z+ i, F" Q8 F
11X must be 0 or multiple of 55.39.217.76/ U0 x8 x. N* U$ @& D- x
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children . `7 @3 K8 x( D% `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。5 male + n. m8 U9 x& E0 d公仔箱論壇9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
