That is a very simple mathematics question. 9 E- m+ [- D4 v+ Q0 mtvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child' Y. w9 Y2 o( S# E$ S' c3 n
6x + 3y + z/2 = 100 Formula 1公仔箱論壇. U4 q5 J- Y, `8 A
x + y + z = 100 Formula 2 5 u# r" F1 I2 E) L- e4 X" j/ Qwww.tvboxnow.comSimplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb1 j( w9 J/ Q3 }6 L$ U* X
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4tvb now,tvbnow,bttvb% P7 x4 M# y5 a
Formula 4 can change into 11x + 5y = 100 Formula 5 3 H4 D4 ^# g) `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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ( d6 x6 R) y0 uTVBNOW 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。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. ( v P% Y+ N5 M0 Q6 BTVBNOW 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
man,female,children0 k- w3 i7 U6 j3 w
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
9 x7 Z# q1 e0 k; X9 _' D' }( Y公仔箱論壇11X must be 0 or multiple of 5 & L, I( u/ R4 g6 o4 ?1 W- _that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children * c! s+ }0 Y! i' |! G5 male 公仔箱論壇* l7 ?# r6 ]! _8 f, C' u9 x
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM