[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
( p7 \  f( H, Nwww3.tvboxnow.com規則
4 M) \! I" n: G, W( Awww3.tvboxnow.com只何用100人搬100塊磚,不能多也不能小...6 d8 U+ y. p% m; v. r( w) i- _
100人當中有男人、女人同細路仔( L' l6 X" Q- x- }
1個男人搬6塊磚
) h3 c$ H9 C" X5 v" S0 U  |  _1女人搬3塊磚
$ x8 r9 e% ?) y' d0 ~% S& 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。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。5 M: I0 x) h0 A6 |6 O
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1 c6 x' T3 G( S+ a/ e2 [tvb now,tvbnow,bttvb問搬100塊磚
( P. K9 Z2 V* ^# r& dtvb now,tvbnow,bttvb要幾多男人、女人同細路仔公仔箱論壇% Z3 o; y0 N8 }8 C1 H/ t. V

+ [/ X7 u2 s0 rwww3.tvboxnow.com答案30號公佈公仔箱論壇7 o% Q# S+ s" l* u) o

4 }  e- y7 P1 G7 X( {8 V' ?3 U" s) f[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.公仔箱論壇: j0 r, R9 F3 j/ r/ x# Z2 B0 O
Let x = Male, y = Female, z = Child" b8 W2 f: \  Z# i* M' s
6x + 3y + z/2 = 100   Formula 1: e- L% r; k. ~1 \  {0 c
x + y + z = 100    Formula 2公仔箱論壇$ d7 L6 Z9 r* @0 A
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
. m; s7 Z  S* dwww3.tvboxnow.comSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
  M  M; y! h- yFormula 4 can change into 11x + 5y = 100 Formula 5
$ u; \9 k: V4 tIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
/ D9 D( n1 R- B& Z8 Owww3.tvboxnow.comAnd 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.www3.tvboxnow.com( o* c" H3 X1 e0 @! v/ I
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,childrenwww3.tvboxnow.com: z5 y& `+ z/ J- V
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
& M3 ?3 ^* R# A2 @tvb now,tvbnow,bttvb11x + 5y = 100 Formula 5

* a' ]( e6 S7 B0 w. Z% y4 a
11X must be 0 or multiple of 5
2 f& F) r8 Z9 \( k7 L8 H1 _7 m0 Ftvb now,tvbnow,bttvbthat meanz x must be 0 or 5

manstein

86 children
7 y8 \) m& c# o& m9 i5 male 7 ?8 M6 H( E3 }. \# J& m
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

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答案:  男人   女人   細路仔
( i5 v- J, m6 U" G# w. U- r0 P          5        9       86

fristz

thx4sharing