That is a very simple mathematics question.公仔箱論壇6 O, p6 C K) b. F
Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb& r% B( Z$ {0 ~4 T& v% t$ P" ^
6x + 3y + z/2 = 100 Formula 1 5 i0 ?) K# H' A1 b/ q9 x b' ux + y + z = 100 Formula 25.39.217.764 @2 P; x3 q) C) g
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3) L4 C3 M* U8 n& w' j2 Y
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。& _* H, U1 S' W9 C
Formula 4 can change into 11x + 5y = 100 Formula 5% o8 a6 [/ ^0 @ K9 b& _& K2 \
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 2 v! T6 x% \; lTVBNOW 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.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。% \9 e+ A% V$ m3 }, ~5 J5 M3 h
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, d2 [; B4 F d& T, o [6 I- k
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM