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標題: [IQ題] [數學題]100人搬100塊磚 [打印本頁]

作者: 1/5    時間: 2007-10-13 05:08 PM     標題: [數學題]100人搬100塊磚

100人搬100塊磚
' [: h) \! n) W0 F5 i- NTVBNOW 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。規則0 W8 c( w1 z+ E0 G% a6 n
只何用100人搬100塊磚,不能多也不能小...公仔箱論壇/ H& t/ u7 |3 {: M6 o3 c- r
100人當中有男人、女人同細路仔tvb now,tvbnow,bttvb0 E8 {4 o8 e0 |9 M5 |8 l, {- |5 Y7 E
1個男人搬6塊磚
. G/ s/ i% F/ \3 m2 ?. J1女人搬3塊磚
) b+ b  S, }4 Dwww.tvboxnow.com2個細路仔搬1塊磚
8 L; T& l9 L; ]" R% o, ~www.tvboxnow.com**************************************************************tvb now,tvbnow,bttvb8 K! s( Q  w$ T: W
問搬100塊磚3 h3 h! a- {8 L  M" h6 Y& _
要幾多男人、女人同細路仔tvb now,tvbnow,bttvb" H$ C, ?: P, E+ F6 N2 M# B; n: y9 R
! U, x) @2 x, f8 W  m
答案30號公佈
. ]- D) E$ i+ K6 g" o8 Jtvb now,tvbnow,bttvb( @7 Y0 Y0 g0 G# R! T7 D+ j
[ 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.# R8 G' @4 b' n- W7 k4 n7 H% }
Let x = Male, y = Female, z = Child
+ L$ I+ k" t& {! ?+ B6x + 3y + z/2 = 100   Formula 11 U5 F: D7 G2 c3 d
x + y + z = 100    Formula 2
0 j9 b/ v9 O: p: ?tvb now,tvbnow,bttvbSimplify Formula 2 into z, we get z = 100 - x - y Formula 3
4 R, a( a) b" |: Q$ V公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
7 Z% o2 F) @( {+ P  k  w  AFormula 4 can change into 11x + 5y = 100 Formula 5
( ]8 {, L) H; t; _) W$ H' L. uTVBNOW 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.
) a6 {1 j8 e0 t, V' ]/ ~# n* uAnd 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." W2 z; |$ @2 W5 e5 d/ `) F
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,childrenwww.tvboxnow.com0 c$ |: K2 K9 Q" \& H
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
4 |5 M3 f" w4 ^' G# gwww.tvboxnow.com11x + 5y = 100 Formula 5
, q: b; n: D2 c' h# o5 L! }公仔箱論壇11X must be 0 or multiple of 5公仔箱論壇5 w6 K9 L2 }+ ?0 r( Z! w
that meanz x must be 0 or 5
作者: manstein    時間: 2007-10-15 08:28 PM

86 children
6 s4 F0 ?& D% S1 f5 male
7 w$ N$ {9 g1 d7 Vwww.tvboxnow.com9 female
作者: dafunhei123    時間: 2007-10-15 10:39 PM

数学问题,线性代数,我算算再说
作者: dafunhei123    時間: 2007-10-15 10:47 PM

4楼5楼的算对了。看来这里的人也很无聊,线性代数,大学的教材
作者: ghjleo    時間: 2007-10-17 04:23 PM

5,9,84
作者: leou2830    時間: 2007-10-20 10:21 AM

想知道耶
作者: 1/5    時間: 2007-10-30 01:02 AM

答案:  男人   女人   細路仔tvb now,tvbnow,bttvb6 w5 m/ L- D! Z/ t, Z9 d
          5        9       86
作者: fristz    時間: 2007-12-6 10:09 PM

thx4sharing




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