That is a very simple mathematics question.. Z) \/ l8 h6 u+ r( L1 \% [
Let x = Male, y = Female, z = Child 0 ~. B, s0 ~. P$ U9 M* f5.39.217.766x + 3y + z/2 = 100 Formula 1TVBNOW 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。* M: D/ y& C( [5 M- B" r/ Z( W
x + y + z = 100 Formula 2公仔箱論壇4 }. a+ [7 W4 `5 k3 S! b& e
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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 C$ x$ D4 L! y: l# P
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.76( s( `7 h' t" `3 c) N
Formula 4 can change into 11x + 5y = 100 Formula 5 5 T8 ^& a3 M+ j; ?7 `) ^公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb8 {8 I0 ?" y! k( W; X9 b- U4 S6 W
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. & B: M; v" Z3 @3 E) y, P% V3 @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。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
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11X must be 0 or multiple of 5 - Q) s6 V& g# j; dtvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children6 f8 ^& {. o* s3 ^, z& c6 @5 L
5 male 5.39.217.76* X) Q9 X( l. i2 H4 E4 z
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM