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標題: [IQ題] [數學題]100人搬100塊磚 [打印本頁]

作者: 1/5 時間: 2007-10-13 05:08 PM 標題: [數學題]100人搬100塊磚

100人搬100塊磚9 q% s. D0 w: L1 {) n, r$ S
規則tvb now,tvbnow,bttvb) p) u& J+ E# v
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5.39.217.767 l& K' r `1 a+ q4 p4 B" C
1個男人搬6塊磚
1女人搬3塊磚tvb now,tvbnow,bttvb1 k1 n6 _ C1 H. }; h
2個細路仔搬1塊磚
**************************************************************5.39.217.76. y8 Q; ]* k4 K( A1 C4 W
問搬100塊磚
要幾多男人、女人同細路仔公仔箱論壇3 _9 {6 ]" \; e- @, O& s& h4 y

答案30號公佈

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

作者: twinsdragon 時間: 2007-10-13 05:40 PM

That is a very simple mathematics question.3 \+ U$ \- r3 N; e3 ]
Let x = Male, y = Female, z = Child
6x + 3y + z/2 = 100 Formula 1
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 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。; x% \! N' X' ]9 H/ E- w" G5 \
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb9 I0 S- s" I! ~ }0 ^* }0 R) S% e' S
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.tvb now,tvbnow,bttvb' d- V* F6 a- X; R @3 K
Eventually, the answer is 20 female and 80 children and no male.

作者: alan1234 時間: 2007-10-14 12:19 AM 標題: two answers

man,female,children5.39.217.765 ~4 T' J7 L W; J1 @2 O$ W
0,20,80 or 5,9,86

作者: RyanC 時間: 2007-10-14 10:46 PM

原帖由 twinsdragon 於 2007-10-13 05:40 PM 發表 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。. G0 h6 m" |) G/ a" b
11x + 5y = 100 Formula 5

11X must be 0 or multiple of 55.39.217.765 t$ H8 x; D9 N }9 y1 f
that meanz x must be 0 or 5

作者: manstein 時間: 2007-10-15 08:28 PM

86 children" _' Z' b% N7 E5 c
5 male
9 female

作者: dafunhei123 時間: 2007-10-15 10:39 PM

数学问题，线性代数，我算算再说

作者: dafunhei123 時間: 2007-10-15 10:47 PM

4楼5楼的算对了。看来这里的人也很无聊，线性代数，大学的教材

作者: ghjleo 時間: 2007-10-17 04:23 PM

5,9,84

作者: leou2830 時間: 2007-10-20 10:21 AM

想知道耶

作者: 1/5 時間: 2007-10-30 01:02 AM

答案: 男人女人細路仔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。3 H( _, c1 L2 w; ]
5 9 86

作者: fristz 時間: 2007-12-6 10:09 PM

thx4sharing

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