That is a very simple mathematics question. / W, X- S" ^8 J3 eLet x = Male, y = Female, z = Child 8 f8 O5 [6 D+ `' @0 B5.39.217.766x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb" h [5 n) P, Z- [
x + y + z = 100 Formula 2 1 m# K0 ]& U$ g1 H( K! D5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb% L* k) Y6 Q% t8 P% Q
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4/ {% o. c3 {. G2 q# ]! E, i" g
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb8 a! H1 d0 X) H* d: M3 z$ r
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 5 w' h! f2 N* K; ]4 j8 FTVBNOW 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。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. " M- q- i& F9 P; O ^5 a' N" H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 ' u0 v. [! L% Z- E- RTVBNOW 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。0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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。2 s# @, j) R4 `; X+ v
11X must be 0 or multiple of 55.39.217.76; K( I6 A- f, L
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children % j1 f4 f, Y w: k5.39.217.765 male 2 Y# |: y1 l7 y/ _; q1 e" r& |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。9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM