[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$ B3 d& Q! Q; j+ A
規則
% T" D. o) }  S; j! }4 {- x+ h% E公仔箱論壇只何用100人搬100塊磚,不能多也不能小...公仔箱論壇# A0 Y/ E+ {- w9 S
100人當中有男人、女人同細路仔" e8 Q" d" S  b9 V+ \
1個男人搬6塊磚tvb now,tvbnow,bttvb! H( D% ]4 X+ V* W
1女人搬3塊磚
; ?0 h+ m% g' d* b7 k2個細路仔搬1塊磚3 I  b" m% V) j9 o3 L! ^4 C2 v
**************************************************************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。8 c0 F* x% M. B
問搬100塊磚公仔箱論壇5 Z3 t( J( U; m  ^, N: }) V
要幾多男人、女人同細路仔
7 _) N0 l# h, A- _公仔箱論壇3 x* D; C& T, [
答案30號公佈
# w6 q* U7 W% b9 }/ a: ]. y4 m公仔箱論壇. [& w& D% B( E' v% @! S$ i
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.) z4 y! K( a6 w: e* i
Let x = Male, y = Female, z = Child4 v6 ^8 F9 h* T; ?
6x + 3y + z/2 = 100   Formula 1+ k) U# T5 V0 _( ^/ ^
x + y + z = 100    Formula 2公仔箱論壇& D, y8 s; M9 y/ E, s; \  \& O
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3* D. F/ ^% q4 A- h  A/ g
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
. F5 d$ X- w9 e- F7 W) ?5.39.217.77Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb+ A% |7 ~7 Y5 i. ~  b
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇& _, D, a/ Y! b1 _; w2 O+ N7 s
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.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。, ]$ v6 L+ \! C& Y8 {/ P  d" g7 O
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
9 }( I, S& N3 T( A8 B6 Utvb now,tvbnow,bttvb0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 7 g! X) [  f" V: ]: E3 r6 Z4 z, ^/ G4 ~
11x + 5y = 100 Formula 5

5.39.217.77/ X. C- v; V1 x: m- C0 j4 [# T) k' M
11X must be 0 or multiple of 5+ `6 z. o: G) a% U% @
that meanz x must be 0 or 5

manstein

86 children
5 E0 h) O" ?0 v. U  t1 S/ ?5.39.217.775 male 5.39.217.77- J  s; `, b" X9 M' ~1 |3 N5 O
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# x# i. g7 y  l, a8 ~% r$ ]
          5        9       86

fristz

thx4sharing