That is a very simple mathematics question. 7 L+ j. S% L8 _4 NLet x = Male, y = Female, z = Child # o5 O3 D4 N# [0 v) M J; o6x + 3y + z/2 = 100 Formula 1TVBNOW 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。" ^* }3 M5 x' ^# R- d
x + y + z = 100 Formula 25.39.217.76% k& N. O% E1 u6 ^
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 4 j6 W8 t$ l' q公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 & }( s) D2 {' f k2 Ztvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇$ c; N5 }& Y' W/ `+ {1 C
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 1 C9 E' J7 ~9 \( o公仔箱論壇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 = 80.5 x' A3 w5 {4 W1 s b
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
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0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
5 M0 h8 P' P: `+ W) F11X must be 0 or multiple of 5TVBNOW 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。/ r* ^# K) x9 C1 |7 H0 R( E
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children + P% h& |% ]8 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。5 male 公仔箱論壇; c5 j* F2 x6 Y }& `8 }
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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