That is a very simple mathematics question.; ?: V- _- u+ _! t0 Q" w
Let x = Male, y = Female, z = Child' {6 i7 h, Z/ w8 U l' ~
6x + 3y + z/2 = 100 Formula 1 4 l& Q) @* E& j. I/ g5 ^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。x + y + z = 100 Formula 2 9 ?& ]3 b7 D! B, Z6 H0 ?' z公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 - r& ]4 l, j6 V1 a" @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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4$ f. k7 l9 I: g* ]
Formula 4 can change into 11x + 5y = 100 Formula 5 " P! `$ i6 b F& wtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇9 Z7 \7 X& c, r6 ?
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。 t1 Q1 o$ c/ L8 t5 Q
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- u, S/ c& A0 e# U9 c* e* N
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
4 z9 d: f% v/ qtvb now,tvbnow,bttvb11X 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。; e3 d! B. t' q
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children . L. F" N% T9 F5 n. W5 male ) c4 e* A; J2 D. Z& W5.39.217.769 female作者: dafunhei123 時間: 2007-10-15 10:39 PM