That is a very simple mathematics question. , s( t' ~; o: Q, O5 ntvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child & O; I# ?3 F* b' |3 @公仔箱論壇6x + 3y + z/2 = 100 Formula 1公仔箱論壇) @3 }) o+ o: t7 R+ v! E
x + y + z = 100 Formula 2 5 S5 G5 C+ I. x1 Q! | ZSimplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇. H- Z5 G! f5 j; f* Q% W* n# I
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 5 g; O- _% L% K6 L0 h7 s( ~) J- tFormula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb7 s% u! ~# y+ _4 V
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. , j! G5 }! n. ~5.39.217.76And 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. 1 v4 s$ N2 }, ]0 `( _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,childrentvb now,tvbnow,bttvb. D: m- H3 [% \# [9 x E
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
5 g7 r! S E! J* O# t7 k5.39.217.7611X must be 0 or multiple of 5 # a5 w& N# y" e+ J2 {tvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children, A% a% O% O% h. Z: Y
5 male : `$ A. L" c* E7 r5 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。9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM