[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塊磚公仔箱論壇5 B( K* \, Y$ C# d0 B
規則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。' ?  [/ t) V1 m, f: L; V3 z9 M! p& M$ a
只何用100人搬100塊磚,不能多也不能小...5.39.217.77; l/ W$ }: w' }; {2 [
100人當中有男人、女人同細路仔5.39.217.770 b' _! a) _/ m: w+ M; I
1個男人搬6塊磚1 Y0 G- E- L/ @: r4 `# B6 x
1女人搬3塊磚tvb now,tvbnow,bttvb/ {  ?+ j# J! H# n
2個細路仔搬1塊磚tvb now,tvbnow,bttvb2 f- S1 T" E* y3 T+ X  j/ L: }
**************************************************************: p' \4 p! f& u( p, u2 f
問搬100塊磚5.39.217.77. ~- H: M" u  M; p. }& i( n
要幾多男人、女人同細路仔# Y1 r2 P* y, S, O
公仔箱論壇% x  s) v/ T) w! C% B* b
答案30號公佈公仔箱論壇+ z" Z) \- o5 m  Y; Q$ K

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

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twinsdragon

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發表於 2007-10-13 05:40 PM | 只看該作者

That is a very simple mathematics question.5.39.217.770 Z. c) ?, _9 ~3 T9 Z3 s
Let x = Male, y = Female, z = Child
6x + 3y + z/2 = 100 Formula 1
x + y + z = 100 Formula 25.39.217.77% A0 q& c; @0 a7 ~6 U R
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3TVBNOW 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。' j3 [# Z/ E; q( m6 i5 x; D
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 40 w* H0 @2 ?$ g
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.5.39.217.77 A' }5 n+ A- l" A3 m
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.公仔箱論壇, C/ |3 q: X, t" ?+ ~
Eventually, the answer is 20 female and 80 children and no male.

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alan1234