That is a very simple mathematics question.5.39.217.76/ \" I, z$ \$ U" R
Let x = Male, y = Female, z = Child公仔箱論壇$ l& g0 W- f+ x
6x + 3y + z/2 = 100 Formula 1 T; r8 V( a( W9 U* f
x + y + z = 100 Formula 2 , e& ^7 X# e# b+ Q; i1 mTVBNOW 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。Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 |# P; r3 P4 Q& }Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4, e' E. |- Q* n+ |% s5 w" Q
Formula 4 can change into 11x + 5y = 100 Formula 5 d& N' |; K! g' SIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. " i! M, f3 q' wAnd 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。' P8 Y2 D" w2 A; |4 r, a$ ~ a
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 2 n G9 b ~9 ~tvb now,tvbnow,bttvb0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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11X must be 0 or multiple of 5 ; k% F+ J' p9 }, HTVBNOW 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
86 children 7 U0 s' E6 p V公仔箱論壇5 male tvb now,tvbnow,bttvb m) o i4 b ^. Y
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM