That is a very simple mathematics question.
% k" N' t% e, U, GLet x = Male, y = Female, z = Child
, y3 j* U, M4 h% |8 Wtvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1
( r: v8 U: E* J5.39.217.77:8898x + y + z = 100 Formula 2
1 ] {0 c" e8 ?( USimplify Formula 2 into z, we get z = 100 - x - y Formula 3
' O. ~9 m% a0 |3 d* d iTVBNOW 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 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。: A O* i8 Y2 X [ [1 \
Formula 4 can change into 11x + 5y = 100 Formula 5
5 J' P+ {: u) d5 K2 B( T+ d5.39.217.77:8898In 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。+ q0 ^0 o% o- J3 _" T( L( o2 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 = 80.5.39.217.77:88987 P/ a+ C, J0 v
Eventually, the answer is 20 female and 80 children and no male. |