That is a very simple mathematics question.
5 y7 R" e$ I7 Z& }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。Let x = Male, y = Female, z = Child公仔箱論壇0 y5 G" e" Q. ]+ ]9 }1 g
6x + 3y + z/2 = 100 Formula 1
" T* d; a! v2 V& l* D Q5.39.217.76x + y + z = 100 Formula 2
, O! a; E( U! h! I' h+ y1 ]# d9 h9 [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。Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
; Q& }6 S( v$ m/ d, J1 ?+ HTVBNOW 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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
5 b& k8 d/ q* C9 [tvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5
, E0 P: U) ^( X) x1 D% I+ `0 uIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb1 n0 w7 D4 T! a+ t. |0 _% E
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9 [" F6 z7 j) p, D( H% @
Eventually, the answer is 20 female and 80 children and no male. |