100人搬100塊磚 2 A" d0 A7 }) w# h6 |1 n) d7 X! ?1 E* i5.39.217.76規則tvb now,tvbnow,bttvb: u# _5 Q: h, ~
只何用100人搬100塊磚,不能多也不能小... 7 o9 p6 b: G# o3 a100人當中有男人、女人同細路仔7 Q; C; M; ~' W, h# V* I
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。. x2 V- |/ k' Y
1女人搬3塊磚5.39.217.76" H) o9 t/ S' N: [( A" H
2個細路仔搬1塊磚公仔箱論壇) y: K8 A) |) f6 F) |, d
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問搬100塊磚公仔箱論壇# J, w ?' g$ }2 }
要幾多男人、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。1 R( H. E) y# z( b4 K! y2 B) f
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答案30號公佈 Y4 f! T9 B3 V- e; G 6 x1 \! E! J( n l5 F* c7 u$ d[ 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. " w1 [" y2 S) I$ C: M5.39.217.76Let x = Male, y = Female, z = Child & f: [/ ]4 u7 g; {. N. k l* e: [6x + 3y + z/2 = 100 Formula 1 ! X* w; D5 C) R+ Y6 A) L# S公仔箱論壇x + y + z = 100 Formula 2TVBNOW 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。+ |. G6 x0 c) }: z$ o9 X' z
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇0 J$ J6 R) ]# o7 _0 _" N" U
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4tvb now,tvbnow,bttvb' L' S1 p8 |$ [% y8 ]+ d
Formula 4 can change into 11x + 5y = 100 Formula 5 , L9 u- c; v% m) [2 g6 N( Y' R4 R, m, ETVBNOW 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。In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. & x6 Y# A1 t I$ l% Y5.39.217.76And 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.( Q; }3 ]* c. c
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
tvb now,tvbnow,bttvb* U! v# r: Q. Y: N
11X must be 0 or multiple of 5tvb now,tvbnow,bttvb h3 i& w {9 i, P+ C2 Q1 K
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
5.39.217.76, _+ L) b$ g/ l" M
