That is a very simple mathematics question. - P/ R, V' g- L) m- m! R! q5.39.217.76Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb) p f( ]7 V0 r
6x + 3y + z/2 = 100 Formula 1 & h/ @; J& o4 j, e7 z. M5.39.217.76x + y + z = 100 Formula 2 % P# w& e9 D( U; B6 Z公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 & P( V( v$ v# @3 M! v/ eSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 _& Z) l- |) L# m3 F& |公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇- P: N( ^4 l$ m# H
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 3 U/ I! b$ D) T0 U- C! a ATVBNOW 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. " c* `' _6 R9 c$ c5.39.217.76Eventually, 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,children5.39.217.765 O* `; E; H7 |8 n' V0 q
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM