twinsdragon

That is a very simple mathematics question.
& p' i! y7 g. L& uLet x = Male, y = Female, z = Childtvb now,tvbnow,bttvb8 M4 {. [4 ]' Y3 |& v& |
6x + 3y + z/2 = 100   Formula 1
4 Z: I0 e% M) o' b( b9 I! Z# ax + y + z = 100    Formula 2. h( n5 x# R8 v' D
Simplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.77:8898* H- S  ]) f( X
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4/ s* ~, N) ?# Z% g  \
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.77:88980 Z; S) `0 p  J& h# t0 R) q
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
" B$ Q3 t9 c. k  G5 C公仔箱論壇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.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。$ r8 C+ t$ g# R+ u! J4 F& L
Eventually, the answer is 20 female and 80 children and no male.