That is a very simple mathematics question. # _$ ^# _+ U9 R9 U/ w# s公仔箱論壇Let x = Male, y = Female, z = ChildTVBNOW 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。. ~ @# T' p7 G9 q
6x + 3y + z/2 = 100 Formula 1 2 K1 K9 j! T; I$ x* t) h6 q+ L$ k& N7 {5.39.217.76x + y + z = 100 Formula 25.39.217.76$ t/ p) _; M- S2 W: ~% j
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 * V4 \& V7 p3 P; n1 X公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 3 \8 S8 g( R6 P+ q- M5.39.217.76Formula 4 can change into 11x + 5y = 100 Formula 5 $ ?' B6 i9 ]" q' a- n' h5.39.217.76In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. , o3 w& g& B g8 X* h7 Z! S. htvb 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 P( w- Z. j9 Q2 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,children 6 R5 d$ t# f. X0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
3 ]8 G) b3 I6 {1 e4 G3 ~, k公仔箱論壇11X must be 0 or multiple of 55.39.217.76. k& d: C; Z( ~( q1 |" F
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children # g2 J* P H8 s `) O- M( z5 male 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。. _& d3 S# q% J3 C
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM