100人搬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。6 ~0 ^4 z5 {' ?5 _
規則 % G& h5 V# Y" j& Y, I只何用100人搬100塊磚,不能多也不能小...4 c# b5 d: k' ?
100人當中有男人、女人同細路仔 & u1 B+ i3 n4 N% n) r' z: Y1個男人搬6塊磚tvb now,tvbnow,bttvb/ x; n/ u5 [) i
1女人搬3塊磚公仔箱論壇" e ~3 ^1 ]; N8 [
2個細路仔搬1塊磚 - O4 k. `* w2 u# W**************************************************************& f( p/ D' V) ]: Q/ S
問搬100塊磚" F& \" h2 Z b
要幾多男人、女人同細路仔 / ]7 g. q" I; o* ]7 }0 [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。 " W% `( t. X% @7 N4 T7 q答案30號公佈 $ {" r% b, B' v4 ?* e" lTVBNOW 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。tvb now,tvbnow,bttvb0 t' Y+ A- z/ f0 {5 B& D% L% g" Z0 w
[ 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.tvb now,tvbnow,bttvb" G3 E& U7 t, ]" g, |: [1 O7 r& B
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。$ R5 w& w/ b& a- W; ^
6x + 3y + z/2 = 100 Formula 1; ~% K, S% H7 x) b0 ?0 E5 V
x + y + z = 100 Formula 2 , Z' p4 \3 ?% ]7 }/ z公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 & B. u. V# `& A, v% J, V* e, {5.39.217.76Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 ' j; W8 y" F j: z3 mFormula 4 can change into 11x + 5y = 100 Formula 5 % ~, c1 G% U; k' r% Jtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 9 L m# y# \ u7 F8 C( A* ITVBNOW 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。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. " j! M4 Z$ | j# j/ E" ZEventually, 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
& J \# r8 H- B2 \# j8 ]8 C; ~3 bTVBNOW 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。11X must be 0 or multiple of 55.39.217.764 |* {+ Y* j4 p% }
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM