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。- c6 Z% J7 u% c
規則 0 l: s0 S0 o- x2 D公仔箱論壇只何用100人搬100塊磚,不能多也不能小... % v! A: ]/ b/ s* ?/ @% |# UTVBNOW 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。100人當中有男人、女人同細路仔: w# Z* c# ?% G
1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。& v0 z' Q5 |, x7 f i- H
1女人搬3塊磚 4 G* e3 c; y& G, |2個細路仔搬1塊磚公仔箱論壇( S3 Q( D: _. c) L) L
************************************************************** & n- V0 y3 _4 T! N' c L7 x5 B5 ~5.39.217.77問搬100塊磚8 R2 n3 h, P) w' p, K
要幾多男人、女人同細路仔 9 c: S' P8 n" N4 X) |6 o公仔箱論壇 . c6 f' E4 G: Q) K h+ }) q5.39.217.77答案30號公佈 4 u+ U4 ?+ U6 t- C4 A% b公仔箱論壇 1 Q# u K) w6 |& y公仔箱論壇[ 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. + J6 ^$ h# z) Y* m7 g+ bLet x = Male, y = Female, z = Child % R/ N& d! z7 DTVBNOW 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。6x + 3y + z/2 = 100 Formula 1TVBNOW 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。 L4 K( r' y+ J0 p# C/ v
x + y + z = 100 Formula 2 0 p! v7 h' u( LSimplify Formula 2 into z, we get z = 100 - x - y Formula 3 9 t8 X9 p- M, T( z% JSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。; C5 |# X" o) g& g5 l
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb+ M8 a; Z3 f9 V6 o" Y/ S E
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.77, O/ _! v I) Y; ^5 g
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.( }, v# E' y. t5 A9 F/ A \
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
& U0 R6 v5 y% k a5.39.217.7711X must be 0 or multiple of 5tvb now,tvbnow,bttvb0 x$ v8 q2 |' U' Z+ _
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM