That is a very simple mathematics question.tvb now,tvbnow,bttvb! Q! D! T% x4 }2 P8 K
Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb# b2 c, ?8 n( k# Y- D* X
6x + 3y + z/2 = 100 Formula 1 0 T' w$ E0 F7 ]4 G, q2 @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。x + y + z = 100 Formula 2公仔箱論壇- u+ t4 s; v: ~3 |. K
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 1 l6 n7 G9 `6 ZSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 & p- J, r; q5 s$ S/ t% \5 m: M6 x1 F公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.76, j& x5 b6 [: }1 b# H3 D* }, c
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. $ r& T, I" ^$ M$ N" n$ JAnd 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。' J9 k5 O" I) T4 _( Y/ ?
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,children5.39.217.76) P+ ?& S! V- a2 H: D, A A
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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11X must be 0 or multiple of 5tvb now,tvbnow,bttvb" E- F$ _: T* R, N: Y
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children0 l6 \ o- k' y+ a% w
5 male tvb now,tvbnow,bttvb0 N( P- S4 u* W5 D
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
