That is a very simple mathematics question.
4 y6 `3 l# @7 r& T4 |tvb now,tvbnow,bttvbLet x = Male, y = Female, z = ChildTVBNOW 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。0 ^8 m% m" d! `. J( N: w
6x + 3y + z/2 = 100 Formula 1
% M4 ?$ d2 ^+ i* D9 Ctvb now,tvbnow,bttvbx + y + z = 100 Formula 25.39.217.77:88985 h0 D# t. n" O; L
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
( v8 {' C$ N+ z+ R公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
6 y5 |) y% l# t9 ^0 PFormula 4 can change into 11x + 5y = 100 Formula 5
- E% s3 u, X; V! u2 Q% }; r D& G公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
* O( }: c. v# B6 V6 X3 B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.
# k( c* r! H9 D! S公仔箱論壇Eventually, the answer is 20 female and 80 children and no male. |