[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

1/5

100人搬100塊磚7 Q* `  S  X6 V) M: o
規則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。6 B, n+ i% K2 C5 ]! g: r9 S
只何用100人搬100塊磚,不能多也不能小...5.39.217.77% Z* T& Z$ i6 t
100人當中有男人、女人同細路仔公仔箱論壇( _- c5 t, C, H' x0 U
1個男人搬6塊磚
" n1 b1 m, o& E* N( Gtvb now,tvbnow,bttvb1女人搬3塊磚
! V' E% V  y( E2個細路仔搬1塊磚
3 i. P0 u. q- c6 [3 L) t公仔箱論壇**************************************************************tvb now,tvbnow,bttvb5 H. {) h5 @! c8 H, {! ]2 {7 t
問搬100塊磚
1 z  U- b$ I3 l1 Z% p( {) a) ntvb now,tvbnow,bttvb要幾多男人、女人同細路仔
6 S( E& u1 u4 M1 ?" c
- Y% ^" S4 [8 U  D+ K4 I9 Q, xTVBNOW 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。答案30號公佈4 a) c" E6 o9 Z: n
tvb now,tvbnow,bttvb) H9 X2 z: Z; R1 E
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.; ]; g$ m4 \* l9 @" R
Let x = Male, y = Female, z = Child公仔箱論壇" e" R, u9 I7 D$ r
6x + 3y + z/2 = 100   Formula 1
9 G, t5 g. T: j" A$ ~, c% iTVBNOW 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。x + y + z = 100    Formula 2tvb now,tvbnow,bttvb3 N1 k3 m' w- H9 r& c9 r/ f4 N
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
0 G( M4 R( d' s7 g& d2 z/ kSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.774 v$ ^9 N$ u: y; A
Formula 4 can change into 11x + 5y = 100 Formula 5
7 Q9 |6 C& @) F: \+ L9 W1 U: jtvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
- u/ @# A4 e# y- X; s' O: Ztvb 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.
7 d, W% \7 N$ P8 Q; p+ P* }Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
0 m* c% N2 n/ w+ ]1 L/ btvb now,tvbnow,bttvb0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
* |  k3 i* p% Z2 w11x + 5y = 100 Formula 5

- x: H  L. w0 ~) W11X must be 0 or multiple of 5tvb now,tvbnow,bttvb/ X" n" n) p; j/ I8 D# L) r4 z
that meanz x must be 0 or 5

manstein

86 children4 b6 V( f: k! H$ H
5 male
' l" I$ B4 n- G. m9 F公仔箱論壇9 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 ?( h' ?; v  L3 z. k! u, W% j  m( e4 O公仔箱論壇          5        9       86

fristz

thx4sharing