twinsdragon

That is a very simple mathematics question.
' ]% L# O4 v9 hLet x = Male, y = Female, z = Child
0 h% H8 m3 F) I; B: r5 y! g: Dtvb now,tvbnow,bttvb6x + 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。, M, O/ g. J* ]/ O+ t  v; H4 Q$ [0 N
x + 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。: y' r+ B; r* ^7 `" `7 P
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇0 o9 C. W4 S5 W( O2 \1 r+ y
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
) u1 P  w- M; Q* X, b) o6 {4 ftvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5
5 K6 i: d5 S; g, ^/ ]* Hos.tvboxnow.comIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb. h. L: A: z7 t9 w
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.os.tvboxnow.com, @1 i" z) \: b8 z! S; _
Eventually, the answer is 20 female and 80 children and no male.