That is a very simple mathematics question. 5 c1 V. F4 [4 r0 J1 E. \Let x = Male, y = Female, z = Child) V( R. v$ v. A% @0 T: B9 D
6x + 3y + z/2 = 100 Formula 15.39.217.76( A3 t$ d% Z5 o: a9 e
x + y + z = 100 Formula 2TVBNOW 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。$ i* j8 `* w/ U
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3$ x4 g1 Y* E" t) W
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 X, k1 ]+ W; c: z* p* z" N! b
Formula 4 can change into 11x + 5y = 100 Formula 5 , `! k; `! h7 B5 |% V3 c7 _tvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 6 }" e+ m6 N2 kAnd 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 = 80.2 r l: z% O$ @
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 9 |; V p# Z4 O3 e8 b! {tvb now,tvbnow,bttvb0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
2 D# o7 u/ \6 N) G11X must be 0 or multiple of 5 9 ^2 i7 N6 x$ i# {6 ^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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children . R0 |2 g f) L; F' H$ Y; L1 L公仔箱論壇5 male 5.39.217.763 |" p: O# ?' w* }0 I
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM