That is a very simple mathematics question. 1 j( z9 }3 w- ~2 x* _, Q, [公仔箱論壇Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb' h _2 |# \8 z; _3 f; ~. b
6x + 3y + z/2 = 100 Formula 1: T7 Z) d( g' y% u' e8 A4 I; k
x + y + z = 100 Formula 2 X9 k! |# ~. T& i# k6 u5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 36 |$ u3 H5 @8 S, X1 R2 d, }& _$ t
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4# p- u/ y. l7 r8 V ]2 s5 K8 d
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb c+ W3 c8 U1 E( e4 ?" j
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.76. s, c- f5 q1 P+ a4 v
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。# Q# J) L/ B+ h0 c% b( x
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 1 V- i0 A+ ?- y$ l+ L, I* y ]tvb now,tvbnow,bttvb0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM