That is a very simple mathematics question.5.39.217.769 ^- l$ @/ ]$ I/ H8 o2 [
Let x = Male, y = Female, z = Child ; k, V E& e0 GTVBNOW 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公仔箱論壇5 \% H+ N- z$ `' b2 k+ Q
x + y + z = 100 Formula 2# Q! N( C7 Y5 b D
Simplify Formula 2 into z, we get z = 100 - x - y Formula 30 i# ` T# H1 `" n6 Y6 Y. N
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇6 q$ Q; `# t4 {$ [
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.76, m& b' `) G" q; k
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 7 m" H6 D9 x& J5 |3 Ltvb now,tvbnow,bttvbAnd 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 = 80.5.39.217.76# m* l- Y2 _. ]0 S g
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( `3 c/ k! S, V z: ]9 n; A( x
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
tvb now,tvbnow,bttvb) }7 o% `# S6 \ ~6 `, w
11X must be 0 or multiple of 5 % l: c+ S' Y- P: J I$ w E8 G6 H4 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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 childrentvb now,tvbnow,bttvb6 [* P) B$ O. [$ F# f
5 male % b) z: M# D! ?" p7 ~2 I9 F# h" s9 R
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
