[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
( l' n, e$ ^( ?tvb now,tvbnow,bttvb規則公仔箱論壇" z, U- d: A: @+ _  J0 S& @. D
只何用100人搬100塊磚,不能多也不能小...2 R! Y* t* I2 c; b$ q
100人當中有男人、女人同細路仔公仔箱論壇, a2 q2 y8 |8 H+ d- @1 i3 d3 J
1個男人搬6塊磚
1 N9 |: z7 Y5 r5 y# @& K5.39.217.771女人搬3塊磚
5 X7 Z( |+ q! z3 l2個細路仔搬1塊磚3 Z+ e& S/ f6 J0 t6 W, m9 r& `
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' n: N7 T+ R8 K3 |8 ^2 E2 M: P8 y4 _問搬100塊磚tvb now,tvbnow,bttvb5 h/ D* \1 s) V7 s$ f$ m
要幾多男人、女人同細路仔5.39.217.77# y8 x8 p& x# X7 ?% ~- S! Z
5.39.217.77. f: ]0 N: F1 m& u
答案30號公佈% Z9 F$ z) X, w$ k$ Z4 y
  ~2 b% S: _, |4 O2 U
[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

twinsdragon

That is a very simple mathematics question.- Q; }" g. a! I7 ]9 {& X
Let x = Male, y = Female, z = Child
- q2 p& i2 Q) b6 s! J- r公仔箱論壇6x + 3y + z/2 = 100   Formula 1
) h$ z! |) e! J3 c1 u公仔箱論壇x + y + z = 100    Formula 2# Z6 C- l2 X  K5 q
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
: S3 X/ E* G" ^1 c公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.77! P  |+ e$ @5 N: y
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.77& b% d7 Q; q+ ~" M, B5 L4 O
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.公仔箱論壇, G$ n' I7 }) }% h5 d4 R
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.
. G- |" E- U# \  C6 S, EEventually, the answer is 20 female and 80 children and no male.

alan1234

man,female,children/ `5 t" y# K, f2 a9 d1 B
0,20,80 or 5,9,86

RyanC

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表
& d0 R3 y1 v3 G- B, {5.39.217.7711x + 5y = 100 Formula 5

tvb now,tvbnow,bttvb6 Y) ?/ H2 B* T, `3 u# w
11X must be 0 or multiple of 5
; ]# a5 }$ v# a3 ]- _0 A/ b5.39.217.77that meanz x must be 0 or 5

manstein

86 children
1 Z$ [, m. R9 X# U5.39.217.775 male
: z/ f. s8 G! x/ X4 ^2 @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。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   細路仔公仔箱論壇' E1 `, ]/ p: Q& c
          5        9       86

fristz

thx4sharing