twinsdragon

That is a very simple mathematics question.2 e; B1 }) ]/ o8 ]
Let x = Male, y = Female, z = Childwww.tvboxnow.com+ H( b5 K! I3 T
6x + 3y + z/2 = 100   Formula 1www.tvboxnow.com( [8 P% d, n/ ]) L8 |" w. C
x + y + z = 100    Formula 2www.tvboxnow.com" G$ E, n; W1 a% E
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇& \: {- p* b  V& J' x
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4www.tvboxnow.com& Q, W: y+ U2 e, ?
Formula 4 can change into 11x + 5y = 100 Formula 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。4 F, Q! Z* j5 p% k( l! M
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.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。; H, M6 c$ t% K  t8 V; ?
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.tvb now,tvbnow,bttvb& ?4 R6 c0 ^. [2 t( }& r
Eventually, the answer is 20 female and 80 children and no male.