100人搬100塊磚) A9 g# Y. a2 G4 l8 y% G+ W6 e0 d5 {- h5 Y
規則公仔箱論壇+ A# v' B. L. j6 V& A% B
只何用100人搬100塊磚,不能多也不能小... 9 u" m7 w* M& z3 s, o, Y5.39.217.77100人當中有男人、女人同細路仔7 o: C1 Y9 ~" z7 s
1個男人搬6塊磚 9 n" ~, r+ W% y% I! p2 E& J3 s' M5.39.217.771女人搬3塊磚 - u6 s$ P" g1 B4 {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個細路仔搬1塊磚5.39.217.771 i5 a; h! d8 J1 s
************************************************************** $ s, Q: b. s, { N6 L6 GTVBNOW 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 8 D) g& W6 I# {# A要幾多男人、女人同細路仔5.39.217.77' ?' `: {% e' R5 k7 H* k4 H, w
tvb now,tvbnow,bttvb% q" n& p5 }* g
答案30號公佈 4 \' g* e, F$ Z6 F8 c- H( b公仔箱論壇 * y3 P* X I6 I[ 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. 8 E& R* [# X+ Stvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child6 d4 r F6 G/ ~) C
6x + 3y + z/2 = 100 Formula 1 R. ?' B8 J8 {4 s k
x + y + z = 100 Formula 2 ) s" u+ @7 \/ d5 H8 V! W3 {公仔箱論壇Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 8 O0 H r+ t* M- [0 E4 Q2 Z公仔箱論壇Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 5 {& M1 b6 }' ^# k7 x6 X% L2 Q公仔箱論壇Formula 4 can change into 11x + 5y = 100 Formula 5tvb now,tvbnow,bttvb% f7 B8 x/ y: V, N; G7 T1 \
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want.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。* d" ^+ \* Z5 _ c4 ^1 ]+ U
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.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。0 o& E: a; N0 Q8 P0 _. _3 o, Q# m
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
