That is a very simple mathematics question.2 J/ y$ |; o! P8 l% T
Let x = Male, y = Female, z = Child 2 I6 |9 [/ u/ ?& { O2 L6x + 3y + z/2 = 100 Formula 1 % B2 z5 T6 @0 u; n. 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。x + y + z = 100 Formula 29 j* X: C% g; l- c; V0 l
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 B/ A6 U( w' V, m4 Z" _- m) dSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 1 x( o e# U8 AFormula 4 can change into 11x + 5y = 100 Formula 5! j$ P T+ j a+ q3 B; X$ w
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 3 O! p {. P' k- o& e4 t8 }5.39.217.76And 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 = 80.5.39.217.76' A6 G r* f; P$ u, Q4 L
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 # l A- e4 \, h @$ H5.39.217.760,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
8 f" J0 }6 c$ p$ q9 w: utvb now,tvbnow,bttvb11X must be 0 or multiple of 55.39.217.763 L5 e) @& ^0 O% I, N G3 R
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children " ^# f5 ]4 g' u3 ?5 male $ G* W0 e* E# c2 E9 D ~* pTVBNOW 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。9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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