That is a very simple mathematics question.5.39.217.763 ?1 I9 i& I" [% L3 U: W7 q5 l
Let x = Male, y = Female, z = Child5 V1 q3 X& P: s. X% m U( f
6x + 3y + z/2 = 100 Formula 1- M( v8 r" D% }
x + y + z = 100 Formula 2公仔箱論壇! _, S) N6 j$ F
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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。: q: x2 ~& o l3 U- W. G) U
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 47 Y' K- I& k. _8 g/ K
Formula 4 can change into 11x + 5y = 100 Formula 59 |% _6 `/ b' b5 T; r! K, w9 T
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. " b2 l) [ e) C6 iTVBNOW 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. & y% _- G0 X- N$ M( q5.39.217.76Eventually, 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,children6 N- j5 j' }$ d2 a2 V' B! y
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
( \' d# i; N3 d: S( k6 c公仔箱論壇11X must be 0 or multiple of 5 3 c, q. T8 O: f( x+ a( ?. PTVBNOW 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