100人搬100塊磚7 E( d, s7 m$ n8 f: x+ \; v) r- w
規則/ f/ H1 n6 ^7 B: F! L2 A$ T9 T
只何用100人搬100塊磚,不能多也不能小... ! y: {/ f Y e/ F9 ~公仔箱論壇100人當中有男人、女人同細路仔公仔箱論壇, W3 L' t9 }1 S
1個男人搬6塊磚 / y. g/ c3 d5 _" ?; X公仔箱論壇1女人搬3塊磚 ! Z( ~2 F; n+ h! m5.39.217.762個細路仔搬1塊磚公仔箱論壇 f, i* k: l/ \( M* W
**************************************************************5.39.217.76! t, O, ~0 W1 Y) V$ g' `# Z( Q
問搬100塊磚 5 o/ r1 ?. s; `% r- r6 \$ V, V5.39.217.76要幾多男人、女人同細路仔 - ?) V/ P @3 Otvb now,tvbnow,bttvb 0 X3 P6 P# e7 E! r8 p% zTVBNOW 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。答案30號公佈6 Z. f9 f! T( P8 ?! d
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。7 \6 g% c+ _( y6 d
[ 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 s+ v5 R' w. W6 d5.39.217.76Let x = Male, y = Female, z = Child 5 t1 J2 K- a+ B( ?6x + 3y + z/2 = 100 Formula 1 5 M7 W( u% ~* D% P! E2 {5 {x + y + z = 100 Formula 2 * Q0 u( b* d4 S0 l. n- NSimplify Formula 2 into z, we get z = 100 - x - y Formula 3 ! v7 t! J6 N. l- @% P6 _+ M5.39.217.76Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 & A4 p7 B7 ~0 a7 m3 N6 nFormula 4 can change into 11x + 5y = 100 Formula 5" b. ^8 n/ }$ Q+ t
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.tvb now,tvbnow,bttvb( [, {) q$ O, x! ~
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.# l* |2 T9 I& M- ~0 U' A" C& z
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,childrentvb now,tvbnow,bttvb" n( B2 K) ^3 Q; {: O4 b
0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
tvb now,tvbnow,bttvb7 @, @5 w3 x6 A
11X must be 0 or multiple of 5 2 t& R* D h Y. Y8 \$ m4 d/ Y2 UTVBNOW 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。that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
公仔箱論壇- k; O# V4 W! N; }+ Q
