That is a very simple mathematics question.$ |3 W) k# n; ?! b# ~" R* ~6 u
Let x = Male, y = Female, z = Child2 I7 O; }7 c& e, t+ B% Y
6x + 3y + z/2 = 100 Formula 1 ' T8 ^! {! M$ w0 m# I$ j# e& }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。x + y + z = 100 Formula 2 ; G5 \9 m, S% I; |# g7 f7 CSimplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb! b# f/ u/ I3 x9 M/ A Y
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。. _( }3 g# P, e- U$ b* Q7 W) V
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.76/ y: b$ O& |- O
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.; D" L) c3 L/ b5 a* z' Z
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. 4 ^+ e ?4 D) `/ C/ J公仔箱論壇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 N9 q) H# I C: C# q6 R- f0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
公仔箱論壇( y8 f6 \$ Z: G C8 h( Q& k
11X must be 0 or multiple of 5tvb now,tvbnow,bttvb5 e- W7 x9 j9 {* U2 b
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children " Z; g- }+ X. U% |% z1 I8 b0 g5 male 公仔箱論壇4 U3 U; ]: h7 n- R7 Z
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM