That is a very simple mathematics question.
8 d4 n% U% L' \5 J9 |3 i公仔箱論壇Let x = Male, y = Female, z = Childos.tvboxnow.com- B2 g3 a! Q4 P; v, c. `
6x + 3y + z/2 = 100 Formula 1
, p# `* Q/ |" T) ox + 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。9 `8 i( k& t- D' w! I6 T6 B
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3# L3 [6 Y$ J0 y1 J- H7 l# ?
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
/ d/ m0 P$ P5 g2 j2 {% d, l' x$ Z1 K1 Wtvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5
" V2 b' ~& k, r/ _公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
. [2 U! V9 v5 k" S* 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.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。" a6 w1 w2 C. m" M, r3 b' ]! _
Eventually, the answer is 20 female and 80 children and no male. |