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。/ \8 U$ \% D+ O" O; F2 Q- B+ d. d& w4 [
Let x = Male, y = Female, z = Child 5 z% R& W9 M" b5 i. Ktvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1 6 i9 S* R9 [! K. ?5 ^" Ftvb now,tvbnow,bttvbx + y + z = 100 Formula 25.39.217.76; p# _5 R, h/ |# u
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 1 I& ]" ^6 u1 Q0 SSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 43 F; \7 z* ? A- U8 ~. c$ k2 E
Formula 4 can change into 11x + 5y = 100 Formula 5 + o1 N; s- y- R7 e4 m5 QTVBNOW 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. 7 L+ I9 D0 m( J, ?( z5.39.217.76And 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0 o3 s6 k; M; b
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
公仔箱論壇' s5 K! {: x5 j0 B! p7 H- r
11X must be 0 or multiple of 5& V$ d# j* c8 X: N$ V s7 b
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 2 t& @# \8 @, X* T8 C5.39.217.765 male 5 \+ e1 T' S: D* L' c% A, u9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM