twinsdragon

That is a very simple mathematics question.
4 S  p  o5 h9 E$ j( a公仔箱論壇Let x = Male, y = Female, z = Child公仔箱論壇' C* L. u$ f6 B/ o7 u7 D# h8 K
6x + 3y + z/2 = 100   Formula 1( c$ R$ A! H/ i& g7 ^( e
x + y + z = 100    Formula 2
6 j/ v, Q! e9 G0 a4 pTVBNOW 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 35.39.217.764 u( Z/ J* _+ b5 w" t
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.76% N3 Z- A0 q5 J# o3 a
Formula 4 can change into 11x + 5y = 100 Formula 5
1 \: V# z- o5 l0 ktvb now,tvbnow,bttvbIn 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。) e! f3 R0 ]! e, s+ C
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.公仔箱論壇" B: |' Y3 u6 l. F" ?1 {! {9 ~
Eventually, the answer is 20 female and 80 children and no male.