That is a very simple mathematics question.1 s3 v# v- A9 @3 k% a; X, E
Let x = Male, y = Female, z = Child
+ F$ l/ T- z9 {% V$ X% 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。6x + 3y + z/2 = 100 Formula 1
1 j" i3 I+ ?6 g9 k. A" C2 Y8 a8 ZTVBNOW 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。x + y + z = 100 Formula 25.39.217.76, X3 a; h8 y3 o8 u' o" `6 J: S
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
% L( {7 v5 o& | g$ i6 zSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
6 E$ @: S% r; h; ?+ f9 {3 oTVBNOW 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。Formula 4 can change into 11x + 5y = 100 Formula 5
% H- x9 p: _4 q4 A3 Wtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.766 {2 Z+ ?- s' n; x) B+ w
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.
3 L# Z0 m* F% S B; ^0 h5.39.217.76Eventually, the answer is 20 female and 80 children and no male. |