That is a very simple mathematics question. 1 P- s& I2 _+ ^) T% l& B6 `tvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child公仔箱論壇0 g. n) g: ~0 F Y% Y3 U- O. f
6x + 3y + z/2 = 100 Formula 1 3 G9 S' X; A, Z, |; |+ d; lx + y + z = 100 Formula 2 8 f' i6 G- o: c5 ]: HSimplify Formula 2 into z, we get z = 100 - x - y Formula 34 M6 W6 @, N* i& t
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 ) L) T$ U' K( H4 a7 G5 WTVBNOW 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。Formula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇0 w$ R3 s( W# l/ _/ f
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇, |6 e" Z; ` L3 T% p
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.% D8 N# ~7 ~' y( W* u' W
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,children1 N; D0 s+ f+ @* u2 N9 V4 `0 U1 F
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
h* G i( F% J" N. A11X must be 0 or multiple of 5 9 a7 z. Y! N$ e5 G) R5 @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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children9 R9 C h# O. @! d/ a8 g! g
5 male ( S/ i0 h7 M* H7 r* I% X9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM