100人搬100塊磚5.39.217.76, X. r0 M1 k. I/ d* c. s x2 Q8 T
規則 % a. J6 S, [) c- Q! h' Z只何用100人搬100塊磚,不能多也不能小...( s S8 [; J3 r" I3 S/ m
100人當中有男人、女人同細路仔 : T |+ S8 G8 V8 h/ ~: K; i1個男人搬6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。3 E( }7 o7 B o, |2 y; Y! E
1女人搬3塊磚 6 K q! N0 j& ?tvb now,tvbnow,bttvb2個細路仔搬1塊磚 D# X$ L v9 t- G
**************************************************************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。7 j- B, w+ D2 A
問搬100塊磚 ; s' X8 b" j# U. Y, Z* B8 ?要幾多男人、女人同細路仔tvb now,tvbnow,bttvb! U7 L& s" N3 U7 \8 c6 i, o
That is a very simple mathematics question. 3 l+ | L$ }! p5 Y/ q% ], P5.39.217.76Let x = Male, y = Female, z = Child $ y. f3 U2 q# V, \5 y' ` Utvb now,tvbnow,bttvb6x + 3y + z/2 = 100 Formula 15.39.217.76$ ^) g0 N$ \+ o* c" [( W
x + y + z = 100 Formula 2 7 e6 J3 ?& e. `$ ~% n+ [Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 @" Z$ H4 G! Y( E' v! Y5.39.217.76Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.763 S0 g' R- n- Y G6 l
Formula 4 can change into 11x + 5y = 100 Formula 5 ; ~* d9 N, [( o) a公仔箱論壇In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 2 j0 \0 E* D. M5.39.217.76And 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. + x: k2 O. E" ]( ^+ u, T# b* SEventually, 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,children, W6 n! e( l' ?3 H5 h
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
/ ^0 n2 A! J5 w7 G" J3 u! d+ i: _11X must be 0 or multiple of 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。. V" S0 t8 u4 W, ^& g, s
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 childrenTVBNOW 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。+ Q. }# u6 ]- e, \
5 male ( F e; ]: d7 K: h0 {9 D9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
