That is a very simple mathematics question.公仔箱論壇4 ] n7 ?/ H' J% g7 k! U9 i5 G- f2 P
Let x = Male, y = Female, z = Child : A4 v" X6 X! c: u; Z5 {( v$ S) _9 }5.39.217.766x + 3y + z/2 = 100 Formula 1, T+ V& C5 ]' R1 k; l1 P
x + y + z = 100 Formula 2tvb now,tvbnow,bttvb6 D0 y$ t& O3 x2 l9 M
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 4 \: V7 l: H! q# B2 v6 oSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇, d$ k6 a7 c0 T" G# v
Formula 4 can change into 11x + 5y = 100 Formula 5 " P, ^- k; `1 D+ u% M6 k5.39.217.76In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 2 c& A3 N! D) C$ l3 d* W5.39.217.76And 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.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。' u! v- i" T2 O, }
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
" Y% e5 F1 U$ @; u/ T0 d" Y公仔箱論壇11X must be 0 or multiple of 5 & X# _3 s$ e( v7 }2 q0 S8 ^that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 6 u6 C8 X/ i! YTVBNOW 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。5 male . P! j V! q4 c: ^& I
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
