That is a very simple mathematics question.公仔箱論壇 u1 k8 i$ N `
Let x = Male, y = Female, z = Child5.39.217.76' F) D/ r7 c9 p- t
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb3 L# M1 a/ h3 [" D8 A2 f" }
x + y + z = 100 Formula 25.39.217.764 R6 o& K# E# z4 b; L
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 7 U) V* T: y' f9 m; N2 U0 z1 L7 eTVBNOW 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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 8 J1 U7 m5 t/ c, O" M( rtvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5 ' `. U& a" u$ n- ]5.39.217.76In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.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。" S& k0 [8 h9 s) W
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. 7 s; l3 h3 c5 ~, ^6 X4 jTVBNOW 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。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! o8 p: d X* b6 F. M
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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。0 i* i+ c, s8 ] b
11X must be 0 or multiple of 5 & E; e: S- o' |; 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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
