That is a very simple mathematics question. ' ?3 H! r, F& [2 b& rLet x = Male, y = Female, z = Child ' I9 P* ~* T! ~- K( ktvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1 1 B9 S P; Y. G G0 k: @x + y + z = 100 Formula 2, Y# `2 h0 j+ y9 C5 U! h
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 5 Y( t& h% H' u1 S }Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.775 [$ ]+ y* m4 s4 S
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.77% V+ \/ l6 {1 z: e
In 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。8 m2 l# Y. o* t5 K! a, r. ^
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 = 80.5.39.217.776 P, V' `; o0 R9 w% U
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- C1 y2 K+ k% o$ {! p7 c5 A; t3 c
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
+ \9 h( `& B9 m8 L4 K$ k11X must be 0 or multiple of 5& d" n( k6 h) N
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 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。- M r" r4 X6 v
5 male W0 k; }3 l, N. p' ]/ Y8 S公仔箱論壇9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
