That is a very simple mathematics question./ H$ t! i4 @& M0 ]8 V( c
Let x = Male, y = Female, z = Child ! h1 |/ o& V) f3 I: v0 m1 ~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。6x + 3y + z/2 = 100 Formula 15.39.217.76' [. j' S+ {% S6 O
x + y + z = 100 Formula 2 ) L0 n l0 ?& _0 J5 v% n1 k( e( \tvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3 & n) m) p7 E& O/ G公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 + x% I& d2 z$ Z) ], u公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5 , P B) M& m3 K$ h) BTVBNOW 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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb4 } e1 W4 r* ?5 b9 a% ?
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. - S; |3 c: Y- r% @% Vtvb now,tvbnow,bttvbEventually, 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
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0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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11X must be 0 or multiple of 5tvb now,tvbnow,bttvb& W) Y6 o6 Q7 k' B( i" x
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 6 u0 {/ T$ j3 _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。5 male - B2 D* `( C `tvb now,tvbnow,bttvb9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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