100人搬100塊磚 3 v. z! I$ {+ ^' B3 g; E& Atvb now,tvbnow,bttvb規則 ; ^, [/ e, }! MTVBNOW 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。只何用100人搬100塊磚,不能多也不能小... : k. \) k: u9 g$ t100人當中有男人、女人同細路仔 " u0 R) {( _( E2 s1個男人搬6塊磚tvb now,tvbnow,bttvb( [. i+ r% i/ r* }/ r" l. U" e
1女人搬3塊磚tvb now,tvbnow,bttvb& w) n' t& w9 A l3 P5 H, F7 z7 \2 `
2個細路仔搬1塊磚tvb now,tvbnow,bttvb3 _2 c) C ^3 c2 [
************************************************************** 1 a2 e; Q% x, B- v. | H! {, ?os.tvboxnow.com問搬100塊磚tvb now,tvbnow,bttvb X0 L/ N: j( c6 D7 R
要幾多男人、女人同細路仔tvb now,tvbnow,bttvb. S+ E# w. ]9 z* R. f& Q
" Q( V$ K2 g& v4 E! {& F
答案30號公佈 / {! k, q# S( o0 T7 X; e+ y: R7 I E: H, e$ i, t0 Z
[ 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.os.tvboxnow.com$ k: i- v+ a, T5 }1 k0 V( @
Let x = Male, y = Female, z = Child公仔箱論壇1 k. S& S U. w- Q% n" r0 I/ b
6x + 3y + z/2 = 100 Formula 1 $ Y8 W( h* ^1 U3 u. I xx + y + z = 100 Formula 28 j6 |5 |4 Q0 W$ M3 r% v7 @- N
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3! c7 z/ M: M9 K. O! }
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 * [' ?1 m9 P3 U4 x8 @8 WFormula 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。4 i. [% l$ J# g8 N5 [/ s2 q
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.9 d1 \* C% l0 ]0 s ?+ k, Z
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. ( A5 E l8 A4 O: s: q. G2 QTVBNOW 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
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。1 V0 f" T. _8 |9 y+ R
11X must be 0 or multiple of 5 0 j" z* i2 ^7 U* 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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children公仔箱論壇; D) f1 n4 f% q
5 male * z6 T/ X8 N6 L5 R1 u! R7 M
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
