% Q9 j7 f$ O% B7 U& N公仔箱論壇答案30號公佈公仔箱論壇5 Y" }( I3 f. o' l4 F; f
5.39.217.762 r( M* f, J; N& m/ Z$ Z2 y
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]作者: twinsdragon 時間: 2007-10-13 05:40 PM
That is a very simple mathematics question.5.39.217.767 ?" h9 W* Z: v7 @, U) \) `8 U/ _* L
Let x = Male, y = Female, z = Child公仔箱論壇7 }2 W6 B3 q" K# U
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb2 i' o0 i) C9 u. h8 K0 e2 w' k8 `
x + y + z = 100 Formula 2 ' E) D& `! j6 b+ X; F5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ) n3 W7 H5 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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 % P' _* f! X3 o B9 w" [' o. JFormula 4 can change into 11x + 5y = 100 Formula 5( s4 N0 ?. p: R# N$ R8 F1 ?0 a
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. # S: [2 Z. {" q( @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。And 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. d5 V6 x u: `( A: I/ H
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
5.39.217.76( {8 q4 n2 \5 q& ?" r+ H* w
11X must be 0 or multiple of 5 0 Z4 s0 W5 w9 _# z) VTVBNOW 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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
