That is a very simple mathematics question. : f, s- S$ B2 S. S+ K( [公仔箱論壇Let x = Male, y = Female, z = Child 4 {, P# q, v ntvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 11 T0 m. _* V2 ^3 J u
x + y + z = 100 Formula 2 ( R' K- Z, A( r q; ESimplify Formula 2 into z, we get z = 100 - x - y Formula 3 ! h! t2 q( }7 h6 G A# J% j公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4* D7 A2 K/ O% A' e6 Z2 z
Formula 4 can change into 11x + 5y = 100 Formula 5 ( R+ V3 w$ d& d: j- aIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 9 _# N2 Y* u5 k h8 F4 v( g, 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。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. , F1 a" t5 P, W' `: a: X% w! R$ BEventually, 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 ) S, d+ G) A N! u2 A/ A5.39.217.760,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
' {/ X( `9 N: C# D! `- ]$ Z11X must be 0 or multiple of 5tvb now,tvbnow,bttvb9 t: U# A" k$ X0 q. C
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children ^/ v: Y' ] T3 K5 j' Z/ k5 male . R# O0 Z" X* u, q! c6 s4 N2 d5.39.217.769 female作者: dafunhei123 時間: 2007-10-15 10:39 PM