That is a very simple mathematics question.tvb now,tvbnow,bttvb0 N* y# d; q9 V2 Y& }
Let x = Male, y = Female, z = Child ; A+ r6 v q2 t6x + 3y + z/2 = 100 Formula 1 ; m1 M( H( J! K/ K5.39.217.76x + y + z = 100 Formula 2 Z6 S* v) ^: R* c$ P9 l( S- o5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 / p6 ]- C3 g, ~; I# L7 t公仔箱論壇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。5 J3 A" s$ u$ p2 h/ u# y
Formula 4 can change into 11x + 5y = 100 Formula 5 8 k7 s9 F- W/ @. P% NTVBNOW 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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. , F; i* T* ^) E6 F5.39.217.76And 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. $ O' e n; ~% [$ I/ zEventually, 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
