[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塊磚公仔箱論壇! c9 X3 P9 A( q$ e$ q- A
規則# Z* c" O  h% ]0 B( B
只何用100人搬100塊磚,不能多也不能小...tvb now,tvbnow,bttvb( g- a7 }3 r2 x4 y
100人當中有男人、女人同細路仔tvb now,tvbnow,bttvb& Z; G  _: o( f$ T# J- `
1個男人搬6塊磚: S9 y- L% ^% y/ c$ Y/ |
1女人搬3塊磚
# H/ [4 _* ~/ @( s5 Y; y公仔箱論壇2個細路仔搬1塊磚
, `! I7 D& |+ u2 N3 P# Ftvb now,tvbnow,bttvb**************************************************************公仔箱論壇0 \2 p3 f4 _! d  S
問搬100塊磚
; r2 P8 |7 H) }: X! m. F+ x7 ?' @公仔箱論壇要幾多男人、女人同細路仔tvb now,tvbnow,bttvb* A" @  Y9 @: l& E: @" q7 j. B; L0 X

# K% @! o, a( J5 y! N8 t- p+ g答案30號公佈
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# }6 M1 z$ y4 E' Q+ @4 t# atvb now,tvbnow,bttvb[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.
& j" j- \+ F( `公仔箱論壇Let x = Male, y = Female, z = Child
1 l  S3 F0 D8 Z) `( x+ ltvb now,tvbnow,bttvb6x + 3y + z/2 = 100   Formula 14 W; G& d* Z+ B3 b
x + y + z = 100    Formula 25.39.217.77:88982 M# M$ k& M8 ^9 |# c
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
6 t. J6 Z5 D, t- B. G5 DSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
6 b4 }' |& ~* H& `公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 54 y3 I9 W% r+ H. Y
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
6 `  Y( B: K( T( V5 ptvb 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.. B7 h2 }5 _5 S3 u
Eventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children
+ c  l- S, u7 k, Z" f& d公仔箱論壇0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 / ~3 k) Y4 f, S) |
11x + 5y = 100 Formula 5

tvb now,tvbnow,bttvb5 V7 A! V( s0 M3 d
11X must be 0 or multiple of 5
4 M& x. D  P5 b  t4 }; ^tvb now,tvbnow,bttvbthat meanz x must be 0 or 5

manstein

86 children
% _1 Y; V' _- E4 |" m& ~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 male
6 h/ B/ @' T+ k9 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   細路仔公仔箱論壇7 }* U/ q- a8 |1 _% y# Q
          5        9       86

fristz

thx4sharing