That is a very simple mathematics question. 2 j4 l3 g! A1 l* U/ ~. Ztvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child 2 l" L& V1 p, c) c! H6x + 3y + z/2 = 100 Formula 1 7 [* J7 T( Z+ N$ h# W3 Otvb now,tvbnow,bttvbx + y + z = 100 Formula 2tvb now,tvbnow,bttvb* \% ~# e+ M$ s, S$ B5 R" B
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 * j5 I8 `- u& I( `5 I/ Q; dtvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.77+ j# p1 Z; d c5 E
Formula 4 can change into 11x + 5y = 100 Formula 5 # l+ h- p. g* B, `公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇$ X: h, N( v4 O- o
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.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。3 i: B9 H( c |" r+ U7 z, S! 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公仔箱論壇+ U9 |) z0 x) |: s8 T0 u' V
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM