[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
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' j/ B# ]; x1 V7 Y& P只何用100人搬100塊磚,不能多也不能小...公仔箱論壇+ m0 W2 D$ I& M" V$ Y- J% f( E
100人當中有男人、女人同細路仔! D& M4 }6 H$ t& ~% r& ]7 ~7 z
1個男人搬6塊磚tvb now,tvbnow,bttvb8 m, e2 P& a2 ^$ Q* l
1女人搬3塊磚
  o7 R: y" K. {% X0 _! Z8 Z/ a2個細路仔搬1塊磚/ Y9 U, \; }' b8 j2 l1 q4 N
**************************************************************tvb now,tvbnow,bttvb# W" _3 q2 w& L2 d8 b) q4 t
問搬100塊磚  c2 b8 j- k% `- M  d( v$ c
要幾多男人、女人同細路仔; R) a+ n% J; B- u: e0 G

1 x& |0 f* r! p1 M5 y) U/ |. i答案30號公佈
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[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.www2.tvboxnow.com6 u. X1 Y5 k2 t, V
Let x = Male, y = Female, z = Child
) B& H2 ?! y/ V  V0 K: 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。6x + 3y + z/2 = 100   Formula 12 j9 }& r8 G. w( @6 d
x + y + z = 100    Formula 2
9 M% }/ w9 m4 y  Wwww2.tvboxnow.comSimplify Formula 2 into z, we get z = 100 - x - y Formula 3
# @: R7 q: G$ ~! L( w. _$ Wwww2.tvboxnow.comSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 40 k; a, ]* I1 K7 `7 b6 v# H( c1 U
Formula 4 can change into 11x + 5y = 100 Formula 5
# G1 Z6 _1 Z; }# u/ Ptvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb* \( m6 F$ ~. _5 `7 |
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.
& d0 I( F' g& k; p7 G1 [0 Z( C1 R( ^Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,childrenwww2.tvboxnow.com' s$ n) T9 I; O; }; v# P) k
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 www2.tvboxnow.com+ r$ V' r2 `7 t% _( k6 [5 j8 U& `
11x + 5y = 100 Formula 5

www2.tvboxnow.com  V; P/ q* B* X: a6 J3 l, x
11X must be 0 or multiple of 5公仔箱論壇3 W: M9 s6 E8 E" j
that meanz x must be 0 or 5

manstein

86 children
+ S' J  c% B8 @  iwww2.tvboxnow.com5 male www2.tvboxnow.com% P" {7 Y! z3 r
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
+ q0 N9 a9 @  I# j1 I% i* ?' jTVBNOW 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        9       86

fristz

thx4sharing