100人搬100塊磚 ' A3 a2 S# I$ p, F! l, a' I' I: ?公仔箱論壇規則 % Y# O. }" X$ _' s6 i ^% x只何用100人搬100塊磚,不能多也不能小...7 y, d- l% [: {4 k# x O
100人當中有男人、女人同細路仔 # ]7 x% h" b/ o2 f* r4 S0 k/ {9 R) O公仔箱論壇1個男人搬6塊磚 ' L9 n* B+ W0 K/ s8 ]公仔箱論壇1女人搬3塊磚5.39.217.765 A7 M' K6 Q+ v4 _2 T3 P
2個細路仔搬1塊磚5.39.217.76- o, B' V/ o/ Z) k
**************************************************************5.39.217.76 D3 y5 k T( U. `6 f
問搬100塊磚tvb now,tvbnow,bttvb2 O% o6 i! @/ @/ o$ H
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。2 f$ D; u6 M" U) f; n& ~! N
tvb now,tvbnow,bttvb3 M$ m1 t$ A* E4 X' D! E
答案30號公佈 1 ]5 ?1 o& Z% b& K+ S: sTVBNOW 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。1 U% Q& l$ k+ d/ Z% N
[ 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.; H- a9 G4 l, @9 }7 _" m
Let x = Male, y = Female, z = Child7 q: h4 W/ W2 a# n( B& t: e6 | A
6x + 3y + z/2 = 100 Formula 1 2 M9 Q& n/ J) d7 F: B5 dTVBNOW 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 + y + z = 100 Formula 25.39.217.762 n- p1 w8 F, }7 H4 i
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3tvb now,tvbnow,bttvb0 x Z! t9 b7 k; s
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 45.39.217.764 M$ u% \5 @# |3 I9 d( i
Formula 4 can change into 11x + 5y = 100 Formula 5/ M8 @8 w+ h1 [$ E
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. - C! I- Q) Q) p7 t, n" I; mAnd 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.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。% z1 V6 k( {, {' l5 t
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,children公仔箱論壇- h0 d* L1 a8 b! E9 U- F
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 # L* P, g: `) Y j7 p( P& S
11x + 5y = 100 Formula 5
* @. E% }. q8 Vtvb now,tvbnow,bttvb11X must be 0 or multiple of 5公仔箱論壇! a. ~) V3 N1 f" G
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
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