[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

100人搬100塊磚
規則
只何用100人搬100塊磚,不能多也不能小...
100人當中有男人、女人同細路仔
1個男人搬6塊磚  [' Q* B! H3 z: a# ]; X
1女人搬3塊磚tvb now,tvbnow,bttvb; C2 {* N" t* v$ E  J
2個細路仔搬1塊磚2 V& w  u+ K: p9 m/ }, b
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問搬100塊磚公仔箱論壇+ I/ G# Q9 i. \
要幾多男人、女人同細路仔5.39.217.770 d0 L5 a4 H. X8 |5 B
: m/ t3 \" f( Q& |
答案30號公佈tvb now,tvbnow,bttvb! P8 a3 |4 y$ f2 i4 z  `3 a0 s  t3 ]  j

[ 本帖最後由 1/5 於 2007-10-13 05:10 PM 編輯 ]

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twinsdragon

初級武將

Rank: 7 Rank: 7 Rank: 7

2^#

發表於 2007-10-13 05:40 PM | 只看該作者

That is a very simple mathematics question.tvb now,tvbnow,bttvb' S$ R4 R6 L$ V5 M
Let x = Male, y = Female, z = ChildTVBNOW 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 e5 u* x+ z# M1 t, S
6x + 3y + z/2 = 100 Formula 1公仔箱論壇& W! z7 G9 G( S- w4 ]
x + y + z = 100 Formula 2
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。( L! J; ~- L( _( W2 O0 q6 z
Formula 4 can change into 11x + 5y = 100 Formula 5
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.
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.
Eventually, the answer is 20 female and 80 children and no male.

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alan1234

浪人

3^#

發表於 2007-10-14 12:19 AM | 只看該作者

two answers

man,female,childrentvb now,tvbnow,bttvb. c) r6 r- c0 r) O% C9 I V( ]! \
0,20,80 or 5,9,86

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RyanC

原始人

4^#

發表於 2007-10-14 10:46 PM | 只看該作者

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 2 `) c+ q' }- i( R% O7 S1 w1 P
11x + 5y = 100 Formula 5

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 O- A5 m. ~) _
11X must be 0 or multiple of 5tvb now,tvbnow,bttvb9 U4 ?* y6 _7 L& S/ W& W! s
that meanz x must be 0 or 5

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manstein