100人搬100塊磚 - S6 v [, Z \9 Y7 C& u7 A規則: [7 s9 [$ ~- C" e$ w
只何用100人搬100塊磚,不能多也不能小... " P: q, s" l! `0 \ \) ]' Ptvb now,tvbnow,bttvb100人當中有男人、女人同細路仔; A, f q& W: }% a( \4 u
1個男人搬6塊磚2 p7 H) N# }' J. l
1女人搬3塊磚 , e/ g! R) q8 \9 ~tvb now,tvbnow,bttvb2個細路仔搬1塊磚tvb now,tvbnow,bttvb& d) \, k% O0 P' R! p: a7 n
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問搬100塊磚 $ f- |( U& ^0 }9 h0 c T8 S4 _公仔箱論壇要幾多男人、女人同細路仔 2 U6 S7 Q5 U% K. U% _% h. K0 w公仔箱論壇5.39.217.76- H. v q- T `4 H1 y+ h4 _- S
答案30號公佈 ) u/ O1 C- g# B! \. \' O3 [4 D5.39.217.76- w* z( ]; { Z; W
[ 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. m1 `0 m$ g, D
Let x = Male, y = Female, z = Child+ h2 L- b( L' f( g3 S; T
6x + 3y + z/2 = 100 Formula 1 / l! Q9 s/ N9 \8 W* L公仔箱論壇x + y + z = 100 Formula 2公仔箱論壇" q- S8 H% ]; t+ n( |
Simplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.76" u* H; @# n, t9 t9 j1 Z' Z' {9 F' ?
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。& v+ F# H9 Q' Y% X$ g
Formula 4 can change into 11x + 5y = 100 Formula 5TVBNOW 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。# v6 d. |+ S: |' y/ w: F% `9 c
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ( X- w8 L8 p/ H/ z; y% A5 Z5.39.217.76And 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. * I/ e7 R3 E4 a' n/ Z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,children * [" O2 i# v; m! b {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。0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
