[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4 J2 E5 @9 C \% V' ^9 K* v. L
1個男人搬6塊磚
1女人搬3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。# C4 x/ N' F! ] T
2個細路仔搬1塊磚
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問搬100塊磚
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。+ A" d, @4 O8 C9 E9 ?

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.
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。2 s! X. {* B4 h3 V3 ]' E5 e3 H
6x + 3y + z/2 = 100 Formula 1
x + y + z = 100 Formula 2tvb now,tvbnow,bttvb a) C" V4 r% v
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇$ t5 d2 \/ c' I$ e; z" n
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4公仔箱論壇& `6 y$ C! w7 x. q% \
Formula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇" z' n, I; M4 O2 X( [
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 = 80.5.39.217.76 Y( T; W& e6 y, c/ l/ }
Eventually, the answer is 20 female and 80 children and no male.

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alan1234