100人搬100塊磚 8 p( c6 r& B7 ]" B7 N* Vtvb now,tvbnow,bttvb規則 ' |0 R: Z! h$ n9 A' V5 |2 K; V( e公仔箱論壇只何用100人搬100塊磚,不能多也不能小...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。! r& Y; l. {! E5 n
100人當中有男人、女人同細路仔 / I$ y+ Q# N/ |# `# [: F. A+ b. v! M1個男人搬6塊磚6 n( J! A7 k$ u) `0 M
1女人搬3塊磚tvb now,tvbnow,bttvb: Y0 o2 J9 O, E: M0 e8 x5 y( W
2個細路仔搬1塊磚# B2 Y% r9 h! w4 x
************************************************************** & [: n* g! C" D& [& y. N4 i問搬100塊磚 8 l* L5 _5 k% z$ K9 u5.39.217.76要幾多男人、女人同細路仔' X5 T) Q6 h) a. X5 _1 R9 L
tvb now,tvbnow,bttvb- y: P6 M! K! t* _
答案30號公佈1 g8 u* x) z$ P2 c
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[ 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.' z1 }8 Q# h! X& U1 M( Y7 V
Let x = Male, y = Female, z = Child ' ^& E- |6 }/ f. HTVBNOW 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 19 ^( z0 J9 l( U7 m. ~ b f9 w$ E
x + y + z = 100 Formula 2 * p, q, _$ D# H+ P9 q* ~2 ^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。$ w7 i# C4 }5 {( P( {/ C3 J' t; v& {
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 , y7 B8 \+ i, N7 S$ s2 ytvb now,tvbnow,bttvbFormula 4 can change into 11x + 5y = 100 Formula 5) B1 F+ p+ @3 O K3 F& e9 E4 G4 c
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. / H; p& u- t" z' B9 ?% \tvb now,tvbnow,bttvbAnd 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. 1 i( Y, W/ ^( t! n. D9 W, sEventually, 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 / m; c9 s0 P3 otvb now,tvbnow,bttvb0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
