That is a very simple mathematics question. 4 A: ^1 h' }/ _' [' o) [Let x = Male, y = Female, z = Child公仔箱論壇6 Q+ ^ i+ z2 l* d( e
6x + 3y + z/2 = 100 Formula 1 8 f7 ]6 |7 e# M$ `tvb now,tvbnow,bttvbx + y + z = 100 Formula 20 b- Q I" p# w! @7 U
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 6 g$ I/ J/ S+ G' nwww.tvboxnow.comSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇, u2 ]4 [# T- x& P; [% p1 k1 }
Formula 4 can change into 11x + 5y = 100 Formula 56 ^- z e2 W+ J: c3 h6 O
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5 @5 |) `# Q" ]7 p4 I& U
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." {3 l; |, E5 K6 o# v4 F: e% Q: Q
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,childrenTVBNOW 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。" G/ Y, g: o7 u- j8 y' B
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
) [2 g. s0 b& Z5 K+ r' V; O/ fwww.tvboxnow.com11X must be 0 or multiple of 5( u3 c8 \- f0 P6 L% g
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children公仔箱論壇2 ~0 W6 {$ f U
5 male tvb now,tvbnow,bttvb4 L2 h1 _5 ] @. ~3 Y! r
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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