[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。: w b& p$ w4 I& {) q
規則5.39.217.77:88988 [' \4 g. t: d5 r' }
只何用100人搬100塊磚,不能多也不能小...5.39.217.77:8898& s7 z7 c8 {5 B1 V( ~: m
100人當中有男人、女人同細路仔
1個男人搬6塊磚
1女人搬3塊磚! w; {: j: \+ u2 U+ x# X c) L
2個細路仔搬1塊磚& E( R' n4 }8 p
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問搬100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. C8 i) h4 W' c& T, |4 y
要幾多男人、女人同細路仔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。* R+ l; e1 D7 d8 g1 T8 x

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,bttvb3 }" ?  e& r& W$ J7 Z) e; m; t
Let x = Male, y = Female, z = Child5.39.217.77:8898$ g: a! ]/ r% o+ m
6x + 3y + z/2 = 100 Formula 1tvb now,tvbnow,bttvb. b* S+ b1 D7 \2 B. x
x + y + z = 100 Formula 2
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3! M% F) X8 c" N- _# z  ]* @8 f( |' s
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4
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。  V( W+ G2 A% a. E( `
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 = 80.0 z! D% U4 @( X
Eventually, the answer is 20 female and 80 children and no male.

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alan1234