That is a very simple mathematics question. + z& {: }# g5 ]1 c# WLet x = Male, y = Female, z = Child1 l' ]0 F+ w1 o8 M- l3 g
6x + 3y + z/2 = 100 Formula 1* W0 y% K1 d" a( u
x + y + z = 100 Formula 2 3 U/ i& t `- P9 P0 i1 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。Simplify Formula 2 into z, we get z = 100 - x - y Formula 35 ]! M5 p: \( B, G/ K( H$ d
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 7 v9 p H o+ `( i# g) Qtvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5TVBNOW 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。; \$ @1 i3 Z) z, S! C* q1 T
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇( @0 I0 K9 J! m; d+ ?
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。; F" k1 u! e0 b, C) l! {& X( @# r
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 8 P4 P/ W' S/ R& N. x8 w5 ^8 x0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 7 b8 L* m# e" W9 V. m
11x + 5y = 100 Formula 5
公仔箱論壇/ a2 u( Z- V) Q0 ~* W+ r
11X must be 0 or multiple of 55.39.217.764 ?" `2 Z4 g% W8 t/ N: S" \
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children * c' U& z" U8 j, ] P4 sTVBNOW 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 ' e( a- O$ M! K' _3 L4 Q5.39.217.769 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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