That is a very simple mathematics question.
# S1 D2 o( t5 d6 x Q* {9 L% D7 L公仔箱論壇Let x = Male, y = Female, z = Child5 p" H. x" i6 |7 J! ? }
6x + 3y + z/2 = 100 Formula 1
' ~! T7 {: s# M9 Z, y4 q5 V5 {4 n5.39.217.76x + y + z = 100 Formula 2
/ y8 [& F) B7 T5 P DTVBNOW 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 34 t6 G* u( }! H. H9 j$ \
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
% B( h- v# a& t. KFormula 4 can change into 11x + 5y = 100 Formula 5
, U. u5 P( e! B1 K! j8 B- N1 E1 ptvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
& p- _; B& a- x! E- ?) a: k3 A6 k: cTVBNOW 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。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.
% S6 T! J9 ?2 B+ A2 R" H/ O公仔箱論壇Eventually, the answer is 20 female and 80 children and no male. |