100人搬100塊磚 ( I9 ?4 h$ c: g4 ?+ p規則 ) G7 @% V; y! Y0 C' J只何用100人搬100塊磚,不能多也不能小... 3 v' s# z7 S3 |: o6 M公仔箱論壇100人當中有男人、女人同細路仔公仔箱論壇5 O0 Q& `/ X: Y
1個男人搬6塊磚 ; O0 E( L( q' K0 _( L" Q) [1女人搬3塊磚 0 C! k. x- b5 z& x; Mtvb now,tvbnow,bttvb2個細路仔搬1塊磚- k4 C7 ~. g7 y: U h( O) T
************************************************************** & ]4 v8 C) l! A. H5.39.217.76問搬100塊磚1 d' Z. m& E! t S5 ^9 W
要幾多男人、女人同細路仔 0 \; T7 T4 z; E. U6 K5.39.217.76& O N: v- ^, ~! n" W
答案30號公佈 1 b( D$ p4 ]& L & r5 u" ]( L1 P/ t" ctvb now,tvbnow,bttvb[ 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.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。( e! P4 ]6 Z6 P
Let x = Male, y = Female, z = Childtvb now,tvbnow,bttvb. _4 Q, K6 h+ P
6x + 3y + z/2 = 100 Formula 1 8 k5 Y) x1 j( n- ^3 t6 D: S5.39.217.76x + y + z = 100 Formula 26 ?" m+ ?/ f1 K5 E `5 b
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 " i! d+ [ J2 z- ^公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 43 H6 E& [/ ~) s
Formula 4 can change into 11x + 5y = 100 Formula 5 : s- m, O' }# F: R. fIn 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。7 p; [ o+ A3 d6 J
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. 3 q; j7 n8 n8 S1 wTVBNOW 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。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,children ! C3 K, v/ ~2 z5 O }6 Q6 \公仔箱論壇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 5.39.217.76: D/ Y1 u2 l p1 R0 `7 D2 k
11x + 5y = 100 Formula 5
# [6 y+ n7 [. [' V# U! o) G11X must be 0 or multiple of 55.39.217.763 h" i: H$ \1 {, a U
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children ) Y8 C, }- x; z. u7 O5.39.217.765 male 9 {$ Z+ ?1 {# T) P; 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。9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM