100人搬100塊磚 0 T9 q. ~" }3 K! u/ htvb now,tvbnow,bttvb規則: C9 k: B2 Y9 x' x) L( e
只何用100人搬100塊磚,不能多也不能小... % C5 @7 F& w- h/ Q( X/ m0 `* H" ?1 e公仔箱論壇100人當中有男人、女人同細路仔 . E$ H& w7 k) A; I o# ~5 n) T. [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個男人搬6塊磚 ) H) H( a/ N5 H! e j3 F, W1 utvb now,tvbnow,bttvb1女人搬3塊磚tvb now,tvbnow,bttvb" _) \, ?+ t* O
2個細路仔搬1塊磚5.39.217.762 s6 e- W1 o9 w) U' b. Q
**************************************************************tvb now,tvbnow,bttvb k: O" @- ]* K' v) A) T
問搬100塊磚公仔箱論壇" D1 S& B. P Z0 e! w
要幾多男人、女人同細路仔 g& l. N2 l" _* d& M+ f / S% N" n! e$ [1 |" G. _答案30號公佈 8 G ^" [/ Q: g. _: x4 s0 ^公仔箱論壇7 l4 f; U% I9 t: q" g* 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.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。, K5 d' _6 q$ l8 ?8 d) J+ v
Let x = Male, y = Female, z = Child公仔箱論壇6 |" j8 V" e! v0 {. v
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb+ H1 A! i' m# |
x + y + z = 100 Formula 2* k& `) S* Y. k$ ]8 _, |' X4 P
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 % `4 c0 V. ~( j0 F5.39.217.76Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4: T" m! w" Q( F. M; l9 B9 D; N
Formula 4 can change into 11x + 5y = 100 Formula 5& [/ w# s: U' q! N$ i$ u
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇! u8 M" {# L* `* Q* w
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. 3 B5 P$ O: ^/ m7 L5.39.217.76Eventually, 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
+ k: U0 M' b* W( D2 ` E8 W7 o% h11X must be 0 or multiple of 5tvb now,tvbnow,bttvb5 q( L! F3 M: F d7 x4 E, }" n
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children 9 q5 [+ C# ]9 J. f7 } ]; o& |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。5 male E( B! ~ S. V, z. u5.39.217.769 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
