100人搬100塊磚 + I( Y, O/ e o% U& Q$ q8 l( A公仔箱論壇規則 ( [$ S( |8 o1 W, D! j; y7 K只何用100人搬100塊磚,不能多也不能小... * m1 ]1 Z |9 C- S8 E! u5.39.217.76100人當中有男人、女人同細路仔 & ^0 \, Q# C$ @; `# w6 t1個男人搬6塊磚 : [ K# i1 H! S/ E0 N {1女人搬3塊磚tvb now,tvbnow,bttvb- Z. e4 ^, @' F, o$ z. X
2個細路仔搬1塊磚 5 `2 p9 O! h% k4 T+ }( C+ T: ]. P- XTVBNOW 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 ]0 A$ H# n" }0 w1 Z b5.39.217.76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。8 F* U/ f; D; o" p
要幾多男人、女人同細路仔5.39.217.76+ {3 U9 O4 r- Y3 E8 z: Z
6 J. T0 t' I8 B. x6 L4 D5 V
答案30號公佈5.39.217.761 Z) E" W3 f, Z' F+ a
tvb now,tvbnow,bttvb1 m/ x4 A. |7 a G( V, v
[ 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. ) b; o# D* r: o公仔箱論壇Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb& _" h4 A% M/ e# O% J
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb# m) P: f' b, d% ^5 y& n4 z
x + y + z = 100 Formula 2: C _8 X- P, p9 v9 T1 c
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 + _7 f2 v, y0 |0 H# m, J6 w* 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。Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 # Y) K! v- Y0 X; fFormula 4 can change into 11x + 5y = 100 Formula 55.39.217.761 n- e. P' D% E" c/ r$ a5 R4 b4 {
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.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。9 q/ V, t) T) m8 u ~4 S6 r8 q% U
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. 0 O1 ~$ f, m. _6 Ltvb now,tvbnow,bttvbEventually, 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
公仔箱論壇: O# A% d4 ~# D9 ~2 `7 I, m
11X must be 0 or multiple of 5tvb now,tvbnow,bttvb) K4 y: P3 w" T# P: x& i% F
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, x U$ ^( o. T5 t2 P! w5 f0 l
5 male 公仔箱論壇' J6 z. l$ ]- D) N6 u% f
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
