That is a very simple mathematics question.公仔箱論壇# l2 T. a+ O9 s% F4 ? C- n
Let x = Male, y = Female, z = Child ! ~: c. ]3 Q2 \8 s$ z, w' otvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 1 $ V7 l' o5 q* x# ]& kx + y + z = 100 Formula 2 0 u/ }9 ?. A% Z2 `; P. h! {公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 & v3 ^8 }# k1 E0 S) e& A% XTVBNOW 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。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。5 R+ K& h7 j+ C9 P- m% u
Formula 4 can change into 11x + 5y = 100 Formula 5 * q; q' o1 M( U- H( OIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ! j; q( G6 [' S2 d# |0 Q1 s7 eAnd 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. 7 _6 a& p1 P6 C+ d" Y; k6 M公仔箱論壇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,children5.39.217.76' [# x( t: U) R2 N0 |2 Y
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
* F/ ]2 X( c1 f- |. g5 V, E11X must be 0 or multiple of 5 # \+ S) r0 F6 a- zTVBNOW 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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM