That is a very simple mathematics question. i7 g/ E" ^0 n
Let x = Male, y = Female, z = Child3 }+ f! Z2 b5 H( y
6x + 3y + z/2 = 100 Formula 1公仔箱論壇( [- ]* Q# S8 _. B
x + y + z = 100 Formula 2 0 S# Q$ t9 Q% |5 z6 a" S. \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 3TVBNOW 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。1 u$ R% e# d- \; F
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 u" z( y- J/ A) X
Formula 4 can change into 11x + 5y = 100 Formula 5 % f" M/ a1 `9 @tvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 0 T2 \( c' {1 B+ X0 `5 T9 j" A" Jtvb 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 = 80.7 g9 g! I a7 V7 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,childrenTVBNOW 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。( L$ ?% v) ?" _+ {5 t) N7 Y/ R
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM