100人搬100塊磚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# q2 @0 f% U4 C" Y
規則 y% [8 G, A$ H5 K0 R只何用100人搬100塊磚,不能多也不能小...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。* Y# K, Q! g8 l
100人當中有男人、女人同細路仔 ( C! k0 z7 P) k8 Y" G: ?( T5.39.217.761個男人搬6塊磚5.39.217.76: g |6 I8 m( ~, C' s/ ?4 A
1女人搬3塊磚公仔箱論壇# q% M3 u2 Z9 M% n% ?
2個細路仔搬1塊磚 8 n. u6 F0 K. c0 _& _************************************************************** # O2 \9 I* S% I& \# m: A6 L公仔箱論壇問搬100塊磚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。0 e% ?0 G* Z D5 n: s, n
要幾多男人、女人同細路仔 4 Z8 H! y# Q7 }8 H7 \ 0 O* G2 l8 |( r答案30號公佈5.39.217.76; Z) J* a) d, \4 w7 W
公仔箱論壇! ?2 c; }6 e3 E; T
[ 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. # | H7 p& C- L0 y0 htvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child公仔箱論壇) T! M; [% [2 [4 { z1 F
6x + 3y + z/2 = 100 Formula 1公仔箱論壇' _+ Q# [* W, Q( s# Z
x + y + z = 100 Formula 2 " f# Z3 x1 X1 ^ F: r) W0 Q5.39.217.76Simplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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。, w3 g8 x) T- c; D) X9 C# L
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 : w) L( C6 @* [) t& H公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5 4 _% P* v( J" r4 d" Q% Q/ }/ LIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 4 f& ~/ R x( ?- P0 G9 ^$ x5.39.217.76And 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. - i6 t/ J4 A! g% uEventually, 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,children5.39.217.76& s1 j) K+ y& T% D
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
1 s" h' h% n6 _- n0 }& E11X must be 0 or multiple of 5公仔箱論壇$ l$ a! S# a# n7 a/ i- q* ~) }
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
