That is a very simple mathematics question.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。" o# a* A0 S! M( F
Let x = Male, y = Female, z = Child5.39.217.762 ^+ P( R! [ l: s* r4 O
6x + 3y + z/2 = 100 Formula 15.39.217.76* \3 T. [. Q+ V
x + y + z = 100 Formula 2 5 }* u6 |, X) i% p8 r0 z% m' z. ^公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 38 r% |: ^+ C- c$ a& t" l0 \
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 2 p; |$ P8 O9 {9 e) m' n# l2 Ftvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 55.39.217.760 ]9 E0 n& z) i0 T- Q
In 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。2 m7 y, u8 _# l X0 d" X8 x
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.tvb now,tvbnow,bttvb$ e+ G5 q% y8 ` s/ H/ T
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,childrentvb now,tvbnow,bttvb6 s, ]6 R; z4 V4 f; H
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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11X must be 0 or multiple of 5 F4 ]1 H ?1 g' A9 y9 ^; |5.39.217.76that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children5.39.217.76( Q$ l4 t7 m+ ^) M
5 male 5 I0 \8 U2 k% v7 }tvb now,tvbnow,bttvb9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM