100人搬100塊磚5.39.217.76* F' Z# H( w# p2 o& I: Z( k
規則 2 X" ~* c/ B9 x) x$ X/ ]; j3 g只何用100人搬100塊磚,不能多也不能小... * O2 @' E) M2 h& G, j' s2 t100人當中有男人、女人同細路仔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。7 b" \) [2 J3 P2 p
1個男人搬6塊磚 $ Y$ v/ M; r$ X$ }5 o: H5.39.217.761女人搬3塊磚 ; x- e2 I o6 X; w5.39.217.762個細路仔搬1塊磚 , I v. X. d: ~tvb now,tvbnow,bttvb**************************************************************3 y& K0 T& q' T$ K
問搬100塊磚& |. D& m/ O/ E6 C/ x
要幾多男人、女人同細路仔 ) m/ s Y7 L! c& g4 t/ |& M7 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。3 V d" p$ N$ w" E3 i0 t
答案30號公佈 1 T% j; p0 J! d0 N3 A5.39.217.76 + B+ n" X4 q, A( Q! c$ ktvb now,tvbnow,bttvb[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]作者: twinsdragon 時間: 2007-10-13 05:40 PM
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。/ H( y( u& L4 |# e
Let x = Male, y = Female, z = Child5.39.217.766 r+ [- J; j9 ~8 {6 n( C
6x + 3y + z/2 = 100 Formula 1 ; Y6 I1 p; B, Z( s |& Ttvb now,tvbnow,bttvbx + y + z = 100 Formula 2# \. X; K7 m# s) l, F1 I8 I
Simplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.76& J. x, S' N3 p M* \
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4$ o) S6 {* `1 S& r
Formula 4 can change into 11x + 5y = 100 Formula 5, S8 f3 S: L7 L O' i
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. - P- I% s e: c" ?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. 1 L8 |" B4 u' D4 C# F; RTVBNOW 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,childrenTVBNOW 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。% F; H* z1 b; p3 j, t. [3 a
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
公仔箱論壇' n# x m6 l y; p: P
11X must be 0 or multiple of 5 ' R2 s- A7 d0 l% U# f4 O5.39.217.76that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
