100人搬100塊磚tvb now,tvbnow,bttvb/ m# R' p5 {. }* D2 |
規則5.39.217.760 k6 P5 G/ u' @8 v
只何用100人搬100塊磚,不能多也不能小...5.39.217.76& A- p; B" l0 ~
100人當中有男人、女人同細路仔5.39.217.760 f4 }3 u6 L2 ^; r
1個男人搬6塊磚公仔箱論壇! |; V8 G7 f/ X: [6 W- i
1女人搬3塊磚7 V: H9 g; ^7 j$ T" x
2個細路仔搬1塊磚& E g" B p: e5 v3 T4 T
************************************************************** - H6 P, \8 ^9 g) g8 t! _" E公仔箱論壇問搬100塊磚3 G7 y; K* R3 F z3 q1 i, _5 W( d$ h
要幾多男人、女人同細路仔+ \: l1 {' z# ^6 a! F
6 A0 r. g* _; D% K, N: E2 {( `4 {5.39.217.76答案30號公佈& u. P' J& q1 D
5.39.217.76% ]# b# h1 S( C0 _; |+ p- C
[ 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.公仔箱論壇 _! z( B$ y) Y3 q& k- N# L5 Q
Let x = Male, y = Female, z = ChildTVBNOW 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。) u1 D9 o& }9 |1 @! O
6x + 3y + z/2 = 100 Formula 1 / m' p' z$ t( r6 B" Wx + y + z = 100 Formula 2 $ v8 z% Y5 a' h. `" V, x% {* _; J; ^Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 2 N; L- W# K# u @. e( a9 F' n公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 : U6 ?# n) n6 F) } mFormula 4 can change into 11x + 5y = 100 Formula 5 ! F/ _9 K( N4 _+ T f1 q( S公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 8 D: _2 ~" Z" C4 I( 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.公仔箱論壇: t2 r) r* k/ o3 w$ o2 Y9 v
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,childrentvb now,tvbnow,bttvb* b0 p: j* Q1 J; G. G# N) h% _+ G
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 2 |9 T% J2 p3 `; {! w @7 n
11x + 5y = 100 Formula 5
6 k& e }9 D3 W9 Z' Q3 b11X must be 0 or multiple of 5 3 u- q- U; ^4 r) a, n1 y5 @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! L6 r3 T4 V; ^$ K
5 male & c5 Z; q/ N% ]+ D s! g6 J9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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