That is a very simple mathematics question.5.39.217.77. E3 d8 L$ x* s$ C- e9 ~
Let x = Male, y = Female, z = Child % F* q$ p: T( htvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 15.39.217.777 O5 I. \. M" Q& ?5 v) p6 O
x + y + z = 100 Formula 2 ! B1 T. C' k+ {- {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。Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 , t2 s* ]1 r% z Q" |9 u) Y `Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4. \, k7 E" U" `3 ]
Formula 4 can change into 11x + 5y = 100 Formula 5 0 W) u; C$ l$ c' TTVBNOW 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. ' O6 }# d8 B7 s1 e5.39.217.77And 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 = 80.1 h# I7 q- X1 c* h8 P5 [
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公仔箱論壇( r2 {6 o# `! t4 L( _. g
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
公仔箱論壇( O7 m9 f! U+ l- p0 j
11X must be 0 or multiple of 5 ! a+ o S1 k' r# @" A; G5.39.217.77that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children, k% Z! T1 L! o$ P$ k
5 male 5 Y. O: s, ]9 a$ @0 Y$ g9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM