That is a very simple mathematics question./ y, x! e/ r; [& x% c
Let x = Male, y = Female, z = Child {4 B1 s: \$ F0 C! O/ t8 t
6x + 3y + z/2 = 100 Formula 1 1 T7 \2 J: \) b2 K: K, Gtvb now,tvbnow,bttvbx + 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。" w( t0 s$ Z( p- e
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇/ F% H! S* b: F+ N
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4tvb now,tvbnow,bttvb0 @$ } z$ [# ~. \4 i7 K
Formula 4 can change into 11x + 5y = 100 Formula 5 ( C9 \( U$ K z; D1 Y2 KIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ; O& A2 C' h% e8 e1 a. [- s公仔箱論壇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。+ ], p2 s& E1 p& u' H6 ~6 V
Eventually, the answer is 20 female and 80 children and no male.作者: alan1234 時間: 2007-10-14 12:19 AM 標題: two answers
man,female,children ' M8 W9 D" J& R. l0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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11X must be 0 or multiple of 5 - [& s0 x* z" T( i" z. Z* b9 v, ?tvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM