[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tvb now,tvbnow,bttvb- @4 e, U* Q4 R$ W% g& S8 A
規則www2.tvboxnow.com! Q: N) d0 L2 [! p x2 E+ ^, b
只何用100人搬100塊磚,不能多也不能小...公仔箱論壇$ L3 s" k- s: M, D( Y& ^5 [3 A5 q) c
100人當中有男人、女人同細路仔公仔箱論壇2 D' n" a7 A3 S( S1 Y/ U
1個男人搬6塊磚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 ?) r5 v% ]6 x1 W, ]
1女人搬3塊磚
2個細路仔搬1塊磚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。* G/ O, g$ i' J% T6 x( J/ }
**************************************************************tvb now,tvbnow,bttvb, \1 P& U0 V1 Y; Y
問搬100塊磚
要幾多男人、女人同細路仔
( s$ [" S! Z9 O
答案30號公佈

[ 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.tvb now,tvbnow,bttvb( P2 q% ?2 }7 C
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。7 L6 g. k4 j- x( x$ T. w6 h$ j' y
6x + 3y + z/2 = 100 Formula 1www2.tvboxnow.com3 a* N V+ F+ [' f- a
x + y + z = 100 Formula 2公仔箱論壇& w& D( E3 Y" u. q9 A
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 4公仔箱論壇8 p6 K1 T# D' X: l7 X D
Formula 4 can change into 11x + 5y = 100 Formula 5TVBNOW 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 D/ \* S# n. ?( p
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want." u- [' {$ e+ C( u1 ~9 m+ \( f
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