[IQ題] [數學題]100人搬100塊磚 ， 描述： 問要幾多男人、女人同細路仔

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100人搬100塊磚% X# X, K, k0 X0 H) j" H
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只何用100人搬100塊磚,不能多也不能小...tvb now,tvbnow,bttvb5 l) N: v! O7 {; z
100人當中有男人、女人同細路仔# W* P6 K4 P1 f$ ?0 I# E
1個男人搬6塊磚
2 I  H) z3 M4 Y2 E5 b1女人搬3塊磚
, W/ `# J% C, X# ^2個細路仔搬1塊磚
. j7 u7 ]  c+ q8 `公仔箱論壇**************************************************************5.39.217.765 G+ r* Y, c: J1 ~
問搬100塊磚
8 |6 k! t: ]9 e( O* ?! D  H5.39.217.76要幾多男人、女人同細路仔公仔箱論壇4 Y% u! F0 n7 i5 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。  G6 F& d5 b: r3 T
答案30號公佈
+ ~2 Q* H9 D7 i6 R- PTVBNOW 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。5.39.217.76( T8 U: d' G" J/ I4 Z& A
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.' {- \7 a# ~7 T- \# a
Let x = Male, y = Female, z = Child
8 P4 I; L' |. o/ Q) Ptvb now,tvbnow,bttvb6x + 3y + z/2 = 100   Formula 1
/ d2 L) _. J' t) r/ P公仔箱論壇x + y + z = 100    Formula 2
! V* {% {+ Y& h1 |公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
" a( @, [9 R  B5.39.217.76Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。$ \7 m) `1 T- i$ u
Formula 4 can change into 11x + 5y = 100 Formula 5
3 ?" W7 V) o2 v$ x/ y6 j( _tvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
* V" Y0 W+ R* l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.
' S. Y1 F. \7 c公仔箱論壇Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
( L, H: [4 s/ \5.39.217.760,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
, g& b- i9 S5 `. R( q11x + 5y = 100 Formula 5

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11X must be 0 or multiple of 55 P7 n+ S+ z. a' e8 O$ W) t
that meanz x must be 0 or 5

manstein

86 children$ E1 j+ _; Y6 B/ ]
5 male
6 K5 o% n4 h5 V+ n& A5.39.217.769 female

dafunhei123

数学问题，线性代数，我算算再说

dafunhei123

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

ghjleo

5,9,84

leou2830

想知道耶

1/5

答案:  男人   女人   細路仔
2 R2 C% D7 @2 g+ p% L5.39.217.76          5        9       86

fristz

thx4sharing