That is a very simple mathematics question.2 {# L- ]) K0 m/ O, h1 z l a. r/ g( ?
Let x = Male, y = Female, z = Child i ?) z. H6 ~& N6x + 3y + z/2 = 100 Formula 1 # c+ N% B' }9 h. T4 rtvb now,tvbnow,bttvbx + y + z = 100 Formula 2tvb now,tvbnow,bttvb1 a* B- n) x( a
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb: k; ^; @* d+ R$ E- F/ a: R
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 49 U" R0 G) ?; X5 H9 {
Formula 4 can change into 11x + 5y = 100 Formula 5 . u$ n/ m5 J2 Q7 L) o" C2 FTVBNOW 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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.% r$ ]6 O4 |, g: e) K! W" R
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7 k. \- v& O/ L# ?3 y( ~. P
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 5 k5 S8 C$ H @- E, g8 p: q: k公仔箱論壇0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
