That is a very simple mathematics question.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。4 C& m( E- W0 S5 J, e' Y0 H7 ]
Let x = Male, y = Female, z = Child I5 `/ u# L6 d% e6 i' Q5.39.217.766x + 3y + z/2 = 100 Formula 14 U; I0 O- E: ]! x) ?. C* Z% X; A
x + y + z = 100 Formula 2 7 c9 A% f; L3 M; I" h3 B公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 ( o+ X/ X4 p" T9 t' }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。: N# y* j% `6 X
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.767 Z. ~# y, v+ K2 T- J0 @9 e% i
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. # N9 i/ f H4 i$ T# d' ]tvb now,tvbnow,bttvbAnd 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.公仔箱論壇8 W5 \* r1 `4 [( t9 w4 k2 k' X( g
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* R% {, C+ y& S7 p/ b
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
h$ F& L2 o O& t5.39.217.7611X must be 0 or multiple of 5TVBNOW 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。4 D) j7 }- \9 C* i
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM