That is a very simple mathematics question.5.39.217.76/ y( z) B' {! b
Let x = Male, y = Female, z = Child公仔箱論壇. k' g& d& c6 v" o
6x + 3y + z/2 = 100 Formula 1 + f& e, p; f5 J8 l w5 c5.39.217.76x + y + z = 100 Formula 2TVBNOW 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。" l8 O" C( C* X- Z( W
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 & D5 ^7 k5 _+ z) @* L3 x) {tvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 ' I# b, t8 u8 X! l7 n, [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。Formula 4 can change into 11x + 5y = 100 Formula 5 6 @, \ s) h1 |! c" |公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.764 x3 P* V) W6 L$ w% c1 x
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.tvb now,tvbnow,bttvb2 m5 `! }+ U5 X+ q7 ^8 Z
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 ! M( N: V* a, q& e( U0,20,80 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 ! g1 x, f2 F1 _0 B {; dtvb now,tvbnow,bttvb11x + 5y = 100 Formula 5
9 D8 T5 K9 D. k11X must be 0 or multiple of 5! d m0 c9 q5 `8 H# r) q" W; \7 F
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 4 b! j% L6 A2 E2 I0 ~5 male 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。1 P0 ?1 R/ g( Z) S
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
