That is a very simple mathematics question. 1 E9 z j4 {( y0 @% ^0 ZLet x = Male, y = Female, z = Child- ]; W) R! u) w+ S/ s7 o0 c) X3 Z
6x + 3y + z/2 = 100 Formula 1' ?4 m( ^% y3 ^6 B
x + y + z = 100 Formula 2公仔箱論壇# E, \6 r7 w7 z. { o
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3* ~, b& `- o) w& Q( g# z6 Y/ |6 k+ L
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 7 W, @& S1 o( d8 g( S) zFormula 4 can change into 11x + 5y = 100 Formula 5TVBNOW 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。4 a2 }: z* K7 n
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. # ]6 r1 F& I) c+ b3 \tvb 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 = 80.5.39.217.76+ V% ~3 Z2 e! R8 u: Z( a9 w5 s
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,children1 ^8 g1 B$ t9 b1 ^% I
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
tvb now,tvbnow,bttvb* E2 n2 G9 d$ ]) L
11X must be 0 or multiple of 5 & X/ s# ^6 Q4 L0 a% T Z, z: mthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children5 H8 d' Z4 ~5 F m' n
5 male : b0 O+ e9 x, j& G/ B' }* M公仔箱論壇9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
