That is a very simple mathematics question.公仔箱論壇4 J0 {5 Q M& z, D L! a5 R
Let x = Male, y = Female, z = Child " Z8 t# J. J; t. H ?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。6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb$ q& @) x$ {! Z c
x + y + z = 100 Formula 2公仔箱論壇3 y* S9 g1 S, w8 \/ K! y- Z
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 4 `8 |+ p. P. E" [tvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 2 K$ u/ C( r9 b1 X3 D& @2 E3 q公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5 8 h( P, k% M- z5 m. r/ CIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 5 P5 o1 M/ ^, |7 a- Q# u" ~8 L- q公仔箱論壇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. $ g @" B% [; w/ O! aEventually, 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
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 X* a9 j) @$ n
11X must be 0 or multiple of 54 s7 X2 N5 k) g9 b; l. M
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
