That is a very simple mathematics question.tvb now,tvbnow,bttvb1 {- i+ E) p, @1 G& c) @6 l
Let x = Male, y = Female, z = Child公仔箱論壇+ f& R6 P9 Z7 ^. s4 _; H% c9 b
6x + 3y + z/2 = 100 Formula 11 {) r" ^4 M, ^1 D c' R
x + y + z = 100 Formula 25.39.217.77" m( L7 Q9 Z" y; u7 I1 n5 }. H/ y/ S
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb; {& e+ Y) T; f# w y$ X
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45 [* G+ X2 {. N- o$ a) L# C
Formula 4 can change into 11x + 5y = 100 Formula 5 . G( o! V# _. I9 D; s0 RIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.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。' C, d+ B A1 s$ _& S- K8 o
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 = 80.2 l" n) W. D8 E } f T+ 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
man,female,children公仔箱論壇2 ?$ t* x* y: k
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
; U& z' I0 Z6 z Y! A- M$ t9 bTVBNOW 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。11X must be 0 or multiple of 5 & v: K& Q3 Q1 {& Q* Ythat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children ! n. x6 }1 u1 y: s8 d8 C* z8 S5.39.217.775 male 5.39.217.77, n, \* Y0 M9 y; B
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
