100人搬100塊磚5.39.217.76/ p' \6 h7 Y8 Y0 _ U! J5 c
規則 - |4 y6 C, n% f2 \tvb now,tvbnow,bttvb只何用100人搬100塊磚,不能多也不能小... 9 x6 w. U3 o5 X/ t100人當中有男人、女人同細路仔& y" C Z v. L. D6 s9 [
1個男人搬6塊磚% ^, f) \1 |. ~4 B( b' z
1女人搬3塊磚 2 i; j8 j: k: z5 J. d$ A公仔箱論壇2個細路仔搬1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。0 m6 V) ?9 G& z5 l" h- [9 e
**************************************************************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。# K* [0 [/ M, g2 u9 W- E0 [( m
問搬100塊磚: `" o! `( M, `) t
要幾多男人、女人同細路仔tvb now,tvbnow,bttvb: ]- D- g+ N8 ] f
- w3 e# z& t# _5 ~% H
答案30號公佈 4 e7 R' I' L N4 V 3 N, B) y% U0 y h6 D- G5 qtvb 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. 8 [! F/ f. w3 o% s公仔箱論壇Let x = Male, y = Female, z = Child5.39.217.762 T2 H# X7 u' ~0 X: p" Z; t
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb, t6 I# u1 J* C5 |1 F
x + y + z = 100 Formula 2 . ]& V6 r; a. U公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 2 Y8 H+ A& Z# O* @' b* ctvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 * `* r/ z/ {, E# @- S& e+ B1 LTVBNOW 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。Formula 4 can change into 11x + 5y = 100 Formula 5 & t5 R# \2 G+ `6 a& YTVBNOW 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. 5 \+ H2 G7 d( a" p3 I0 n' M( T公仔箱論壇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.* l; k& f7 \4 X( n
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 - w) M+ n0 E6 G. A9 d0 f0,20,80 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 公仔箱論壇2 a' @; o- w [
11x + 5y = 100 Formula 5
tvb now,tvbnow,bttvb) V" U# N% k& r2 O' H
11X must be 0 or multiple of 5 . x4 k) F: c+ ^tvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
公仔箱論壇2 a' @; o- w [
