[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tvb now,tvbnow,bttvb8 ~' B3 N+ P, K+ W! Q
規則公仔箱論壇, l# c* E5 x! |  k( R. u9 {) _
只何用100人搬100塊磚,不能多也不能小...公仔箱論壇$ _5 p9 }# @* @- {/ Q2 v
100人當中有男人、女人同細路仔公仔箱論壇$ V; n/ }8 @9 a/ I8 q
1個男人搬6塊磚
8 A' ]3 n) ?# X1女人搬3塊磚
0 E  E9 Q% D9 X+ m0 a3 m7 F8 c6 nTVBNOW 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
5 ^9 o3 N$ G2 o- |5.39.217.77**************************************************************9 H. S) V. C: G1 G% K
問搬100塊磚& p9 q& G, D! t
要幾多男人、女人同細路仔
4 C, b5 L, O& _  k: v' z* E5 v
( u7 B3 P5 j& f; i/ 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。答案30號公佈% s5 h1 G. ~, ^

5 y$ N' q2 W8 C8 m$ k# F8 ~2 WTVBNOW 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。[ 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% |7 \! A4 X8 t3 p8 F+ g
Let x = Male, y = Female, z = Child5.39.217.778 Z2 F2 y+ L8 p! v" K
6x + 3y + z/2 = 100   Formula 1tvb now,tvbnow,bttvb9 |# e" o7 ]0 U8 |3 w; _
x + y + z = 100    Formula 2
: |. S* u8 r6 q3 N7 L" f公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
" I# ]0 \0 X, |3 iSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 42 O4 x5 |9 b. H! b/ p4 N6 c, }3 D& B" ?
Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb( r4 M6 j! E) t( J
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.5.39.217.77$ d0 d2 x2 x! B+ J/ S: d# _
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.
2 O, o0 ]0 P, x1 }* ?公仔箱論壇Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,childrentvb now,tvbnow,bttvb1 i( h  m/ W, \! d" _8 Z. g
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
2 v, m1 \6 j% ~0 J% `# ]11x + 5y = 100 Formula 5

5.39.217.772 I) O- t0 z$ t, K% l2 u
11X must be 0 or multiple of 55.39.217.77$ S9 g( `* z" t# V5 K) N
that meanz x must be 0 or 5

manstein

86 children2 U' E, N( |4 w/ Y
5 male 5.39.217.77. d' o4 C7 G0 `/ {+ E/ ?
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5.39.217.777 s' `; C3 m% ~, v. F; s
          5        9       86

fristz

thx4sharing