100人搬100塊磚) P' A8 }* s1 n3 J9 `/ x
規則 8 i! e' |& h0 S0 Y只何用100人搬100塊磚,不能多也不能小...tvb now,tvbnow,bttvb+ ^( B5 \6 P6 J" E0 Z6 n
100人當中有男人、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。+ }6 H; T9 q' [) b
1個男人搬6塊磚 8 B- P, g. } s+ ^0 B0 a* qtvb now,tvbnow,bttvb1女人搬3塊磚公仔箱論壇" Z. R8 e1 k0 \5 f* o$ ^2 o; U. o
2個細路仔搬1塊磚 5 G' J. x3 `1 z* R3 i* i# ~% M4 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。- n8 x- ~% N! z0 s/ J/ k5 I% f
問搬100塊磚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 C" l4 d5 ~& A9 Y, I* t
要幾多男人、女人同細路仔 1 G1 f0 t( }& E公仔箱論壇公仔箱論壇0 j7 t' J; \7 Q+ o# w# r
答案30號公佈+ l/ I, G, z5 P: p& J1 s
www3.tvboxnow.com% P- o9 q6 h7 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. 6 X) d: M5 ]$ R. S5 KLet x = Male, y = Female, z = Child ! L7 P3 m7 ~* V% N/ u; d; pwww3.tvboxnow.com6x + 3y + z/2 = 100 Formula 1 , A, `' [, {$ o1 F) u% J' J# qTVBNOW 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 27 K' |, Y p! z* t0 {7 Q& ], V4 r
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3 y; K7 U6 l! I/ c7 J$ g1 Q5 mwww3.tvboxnow.comSub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 + g6 A" L' ^' O0 mFormula 4 can change into 11x + 5y = 100 Formula 5 ( ~( j9 D( W& Etvb now,tvbnow,bttvbIn Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. ' G. z. _8 S+ | I9 w' dAnd 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.; m6 c* r8 e# f( r" v5 W: R
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
公仔箱論壇% L+ B0 W5 s9 k" W0 {+ W( a. p
11X must be 0 or multiple of 5TVBNOW 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。! r) m7 D& T- X) S- P+ K; b9 T ?
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children4 E7 F# l! Q S* c0 ]6 r1 Y
5 male : p$ Y% L# P" k: t8 `5 F. N公仔箱論壇9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM
