100人搬100塊磚* q6 Q% H( o2 }5 X) C0 G" Y
規則 + S ~6 D$ s( Q( Y! B* Q* U只何用100人搬100塊磚,不能多也不能小... . x- Z$ f5 a7 W A; MTVBNOW 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。100人當中有男人、女人同細路仔5.39.217.76' S7 l, C. ]9 o; i
1個男人搬6塊磚 6 n3 h' h5 H" s8 M4 e$ K: Q' Etvb now,tvbnow,bttvb1女人搬3塊磚公仔箱論壇, C1 x2 b. n3 g7 _9 n ^( v' o5 B: r2 Z
2個細路仔搬1塊磚5.39.217.761 z) S6 z- k" m& \7 K
************************************************************** 8 b7 l7 C' A: X% }5 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。問搬100塊磚% R M# x& L* Q; z3 V
要幾多男人、女人同細路仔公仔箱論壇* m( Y8 h, N; R; Q6 ^. a
9 Y# H1 n' ~" f5 Q3 j- ~
答案30號公佈 6 B S: n: ?& M! \5.39.217.76& g" o# k5 n; t0 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." J: C: H, D* b! ^% E
Let x = Male, y = Female, z = Child / { ^6 \1 ~) v& c! @3 Q6x + 3y + z/2 = 100 Formula 1 % d l6 n" C$ `, f8 ^4 T5.39.217.76x + y + z = 100 Formula 2公仔箱論壇+ S; X$ `' X4 |/ d! N
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 8 I: s& p" |% _* Stvb now,tvbnow,bttvbSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 41 R2 c1 r$ ~& C/ p' h
Formula 4 can change into 11x + 5y = 100 Formula 55.39.217.76& e; W( K8 @' W
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. 7 r; a3 w" z9 a% j. EAnd 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.公仔箱論壇9 X+ K+ M, f: ^1 f3 L2 n1 ]" N( I& 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,children % m7 M7 g' z/ H3 p' dtvb now,tvbnow,bttvb0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
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。6 x" O) I* m7 @
11X must be 0 or multiple of 5 ! C4 M! o" p1 N% I, i/ V2 I0 Itvb now,tvbnow,bttvbthat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
