That is a very simple mathematics question.
# K6 s" A/ O, Gtvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child
% d8 x2 S Y9 u: @公仔箱論壇6x + 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。. S4 G" T: e; A7 n" G( T
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。 i2 j/ g: W+ ?# h7 k
Simplify Formula 2 into z, we get z = 100 - x - y Formula 39 [4 G! b- w% s: M2 k8 A
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。$ ]" R! h2 f1 ]; C8 d) B# W
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.77 y* m7 a' m) @9 n. H5 m# L6 ^
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。) w9 ?7 w0 u! t8 ]5 b" M* k6 A) o
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 = 80.9 Z! i, t6 ^+ H, N2 |# m: k+ q- j
Eventually, the answer is 20 female and 80 children and no male. |