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。+ X0 N6 j5 s, w2 b# F1 e" |
規則 + U) Z; e( z, L6 v& g; R# I% u5 h只何用100人搬100塊磚,不能多也不能小...5.39.217.76% s, y% i& U1 g- L7 Q. Z
100人當中有男人、女人同細路仔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。 H; G b3 O$ {) @7 V0 g
1個男人搬6塊磚5.39.217.76. e# }9 e7 r' a9 Z# Z
1女人搬3塊磚$ u4 h! N }3 l; \! b+ S
2個細路仔搬1塊磚 " D& g1 U" o' m4 |6 T) y9 a) @公仔箱論壇************************************************************** ; R8 C$ ]) S( K: ?公仔箱論壇問搬100塊磚tvb now,tvbnow,bttvb# o4 h7 @' b/ [7 x1 W. T
要幾多男人、女人同細路仔 , }, ]& t7 I6 m4 {0 f8 ctvb now,tvbnow,bttvb9 M1 i, }5 a5 G3 A
答案30號公佈 : u$ ]' i) ?+ R2 H J公仔箱論壇 2 g! Y# E' U8 g' |# [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. + N9 v: A8 J9 o- s, B& ~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。Let x = Male, y = Female, z = Child % ?# |- L" v* ]6 c5 ^6x + 3y + z/2 = 100 Formula 1 ! B4 j5 h/ r9 O5.39.217.76x + y + z = 100 Formula 2tvb now,tvbnow,bttvb7 D1 {2 p/ q) I
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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。. z! i v+ [6 [/ i/ K# J
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4tvb now,tvbnow,bttvb: p6 H( [5 Z R# l- X6 T
Formula 4 can change into 11x + 5y = 100 Formula 5 6 e! }3 \- Q) q9 v; MIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.2 v5 R/ Y( q* m) V/ ]' E( i
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. & l3 x9 [1 E) C" q6 {( Utvb now,tvbnow,bttvbEventually, 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
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11X must be 0 or multiple of 5 6 Y& A& N. `8 H V' c6 ctvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children * o5 U, J( [) U$ @4 a5 male 公仔箱論壇* T! a# q; y/ i: j
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
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