That is a very simple mathematics question.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。) E& Q) U% s B( n1 V
Let x = Male, y = Female, z = Child5 o2 d' f+ `! |( Z5 d1 g
6x + 3y + z/2 = 100 Formula 1 $ K" ~: D$ J+ O* [1 g5.39.217.77x + y + z = 100 Formula 2 ; n9 W- N4 `) [8 V/ l$ V. k) gSimplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.77+ Z! x( ~# ]. d
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4: R7 g* X# e6 }5 ?$ Y
Formula 4 can change into 11x + 5y = 100 Formula 5 2 [2 M- _* B' y# rtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇6 ]6 g, S4 J( L# S- ^ _; O
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.! X- Q( Q5 H4 L: R" ^+ f
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,children5.39.217.77( n8 |4 ~! T& Y
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
1 ^2 ^7 g: G, q" n6 w) t11X must be 0 or multiple of 5TVBNOW 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。6 ]8 R8 j+ T- x) y& x
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children公仔箱論壇8 a) q, f- Q: w& M
5 male 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。+ R* y! f \3 v5 ?
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM