That is a very simple mathematics question.tvb now,tvbnow,bttvb9 T9 l) u% K5 _9 ?- I# s+ \
Let x = Male, y = Female, z = Child公仔箱論壇0 L( |0 o4 E. j6 { W+ r2 L2 l
6x + 3y + z/2 = 100 Formula 16 x% U$ r* \$ [( S7 p' r6 N0 c" b3 T' E
x + y + z = 100 Formula 2& m* X# C3 Q- _- W* l/ e1 Y0 j
Simplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.76. @$ B+ ^+ v8 }, D
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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 k3 @+ y2 e4 B: L' g+ a
Formula 4 can change into 11x + 5y = 100 Formula 5 8 _: x! A. Z! U" t+ g/ EIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.763 x7 s: m' t+ |) w3 G* E
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。2 |$ K" a% y# }
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 ; O- H) ?0 \/ J4 B3 f1 ~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 5 1 r9 j, L- F1 O5 L5 J) y) E' T) L公仔箱論壇that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children t- f% i1 W5 E) g6 v/ V
5 male 5.39.217.768 z3 y+ d* _ A7 j
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM