100人搬100塊磚tvb now,tvbnow,bttvb0 R5 Y7 ~7 ?7 A
規則& M( ]% k3 o8 e# \! Y1 W( o' z Y+ l
只何用100人搬100塊磚,不能多也不能小...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。+ K5 {. o: A, j7 X3 c" D
100人當中有男人、女人同細路仔7 g3 n5 m6 r5 u; s% b$ b0 H
1個男人搬6塊磚 / f: `3 s, K3 f2 }2 V lTVBNOW 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女人搬3塊磚 ; R& [! n! I: `2個細路仔搬1塊磚 ! w! V4 t, A: @3 w: Z3 m5.39.217.76**************************************************************公仔箱論壇) X b8 V3 b# [! L' c5 C/ ^
問搬100塊磚: l6 S+ s& n6 U( q' H5 e) g; E
要幾多男人、女人同細路仔公仔箱論壇: z" C3 { [4 o7 @0 K
公仔箱論壇# r5 M, z" Q2 v1 o0 D4 e
答案30號公佈5.39.217.769 ^8 B/ b8 {' g" s; ^, ]
5.39.217.76. m( ]& b! h Z: C
[ 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. 9 r4 C, d1 s! D( T8 f% L0 B% R) W& J# 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。Let x = Male, y = Female, z = Child 6 F! q' o2 \+ M9 }- S; lTVBNOW 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。6x + 3y + z/2 = 100 Formula 1 $ ? Z; V& E- N( @5.39.217.76x + y + z = 100 Formula 2TVBNOW 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。' ~$ q' _3 b J) c. H- b% Z
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 / s, p: ]5 W" ?/ {3 @+ y9 KSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 49 E0 _" B* Q- A F8 t8 s
Formula 4 can change into 11x + 5y = 100 Formula 50 f5 E1 j: h: q. P
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ; L' y) K+ V' ]+ g- Wtvb now,tvbnow,bttvbAnd 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. : X) x4 v# Q/ f5.39.217.76Eventually, 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,children1 K0 D; U; F6 a$ C4 Z; W0 i
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
$ c! I5 H2 e% f8 s ]5.39.217.7611X must be 0 or multiple of 5 * p4 K- z: Y6 q: B7 m+ z _ b6 C5.39.217.76that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children + @. k. k( J, }公仔箱論壇5 male 公仔箱論壇& [3 W# c, S2 t* ?/ W
9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
