100人搬100塊磚tvb now,tvbnow,bttvb, N( k* K6 \; v$ `0 r
規則 % e: v0 N- x* S5.39.217.76只何用100人搬100塊磚,不能多也不能小...公仔箱論壇# ~. ~' C5 _( X
100人當中有男人、女人同細路仔 * i& e; |! M# ?! {! D" h t, B- @1個男人搬6塊磚 5 I' d) q6 p$ B) m: f0 m8 {tvb now,tvbnow,bttvb1女人搬3塊磚 0 u& ]( C. U0 G6 K; E+ d9 z公仔箱論壇2個細路仔搬1塊磚 2 _( f5 Q$ ]' a) i) D' {7 N公仔箱論壇**************************************************************5.39.217.76. @4 I* f$ g! e# ?( h$ Z4 f: Z
問搬100塊磚5.39.217.763 ]7 f% ^1 A1 E8 ~7 O( [/ f0 g
要幾多男人、女人同細路仔 0 B( f' W! X1 T: k5 r p7 ~ + [) ]- s: y" i2 o' T5 v' vtvb now,tvbnow,bttvb答案30號公佈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。( p: u) D) v& K' c+ k" w
tvb now,tvbnow,bttvb0 a. ^+ B7 m8 w. ^: u( i
[ 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.tvb now,tvbnow,bttvb( ^3 P( x0 ]9 i! X4 y" ~1 o4 [
Let x = Male, y = Female, z = Child `. G" P% \, [$ D, T& v7 [
6x + 3y + z/2 = 100 Formula 1 ' q* K: o3 b1 v N* u公仔箱論壇x + y + z = 100 Formula 2 |$ X' A$ B. b" b/ qtvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3 6 J$ b9 u( A7 ^: x. M* t0 RSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 41 Z3 P2 m6 {' Q7 Z
Formula 4 can change into 11x + 5y = 100 Formula 5 ' `- E, c2 j$ I9 `# `- {4 c5.39.217.76In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.$ s$ [) {8 n' X% {6 P
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. , c" j3 _$ _" h8 _公仔箱論壇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。% M. H, D+ L" Z& o: H4 m* c* _: @! z
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 " s" R. T. d* f1 j4 P, A5.39.217.7611x + 5y = 100 Formula 5
+ b! q' x4 K: F8 v' UTVBNOW 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。11X must be 0 or multiple of 5 - o! G0 ~% U& T/ T, Z [* _% ]that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children5.39.217.76$ t( Z: Q/ a- S6 s; `9 I
5 male ) f m0 b0 M4 b! R' r' @! P% X, `5.39.217.769 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
