100人搬100塊磚 E R( H1 c# A8 U8 f6 S7 r規則5.39.217.773 c) F4 W4 m) k: v2 i* H
只何用100人搬100塊磚,不能多也不能小... ( B9 `9 Y% Y) R! T4 r& X6 A) ]# S& b5.39.217.77100人當中有男人、女人同細路仔 " Q y$ n2 [8 F1 K5.39.217.771個男人搬6塊磚 , q6 e" }% k }$ R/ Q1女人搬3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。# u* q( W: ]4 H
2個細路仔搬1塊磚 - i$ e! Q7 T' \% H/ e( F8 O3 d**************************************************************公仔箱論壇$ n2 }4 {1 l1 x3 u
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。% J0 U$ s! t2 w# S; c/ _+ ~- W
要幾多男人、女人同細路仔 ' Z3 C& C- F! E4 G* G2 V$ B! ~3 R9 O$ @0 s
答案30號公佈 6 U* u1 Z, v6 g& g0 w; c5.39.217.77 & N& m+ g2 d' L, K u5.39.217.77[ 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. 6 j' T6 D$ {5 G" h公仔箱論壇Let x = Male, y = Female, z = Child ; x" A4 b+ p/ [- L6x + 3y + z/2 = 100 Formula 15.39.217.777 f h' D# D- U
x + y + z = 100 Formula 2 + Y. Z- @0 h, H( G0 Q, W0 P& ?公仔箱論壇Simplify 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。' J" x0 t' C0 N" Q6 a' r" P
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。: `" V1 v3 B" q$ X9 v3 p7 J
Formula 4 can change into 11x + 5y = 100 Formula 5 ! e# O& a. E0 E- _8 ^tvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb6 z& L$ m; u6 j; B
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.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。 Y0 R, I5 j9 [( w2 P" J3 t$ |7 X t
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
5.39.217.77# }" l6 @& _! u! T' n3 c4 h
11X must be 0 or multiple of 5公仔箱論壇* c% [: d; B/ t, D: E6 L i
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children% Z. j8 X4 r6 Z9 r
5 male 公仔箱論壇: @+ G9 H& x ^( w; ~
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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