100人搬100塊磚 0 _' b n; x7 i' S2 r4 ?* u5.39.217.76規則 4 S1 _4 b- {9 }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。只何用100人搬100塊磚,不能多也不能小... ) Q0 a% T. v4 H( q0 a) Vtvb now,tvbnow,bttvb100人當中有男人、女人同細路仔 2 p; r8 T" H6 E" G& ]$ m" h: D1個男人搬6塊磚% O. D* L. U# I% O i- D
1女人搬3塊磚0 o: Y \: {; T' N" Q+ {' N0 e
2個細路仔搬1塊磚% _: @4 _6 r& S4 Y# s5 k3 D
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問搬100塊磚 ; R$ \7 U) t4 x/ V要幾多男人、女人同細路仔5.39.217.76# }+ G2 r8 E# t: y; t2 Y
5 s( z' T( E0 n2 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。答案30號公佈 * ?! K' P! J! k : Y. x {6 s2 R公仔箱論壇[ 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.5.39.217.763 B. v" k+ H; q) P
Let x = Male, y = Female, z = Child# b" n0 e# w9 ]! C9 X- V% i+ t
6x + 3y + z/2 = 100 Formula 1 & _. C- P9 i+ G& A/ M- Y, Xtvb now,tvbnow,bttvbx + 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。4 c% O0 P9 k2 O8 e8 w
Simplify Formula 2 into z, we get z = 100 - x - y Formula 35.39.217.762 J4 N; M9 Y) N
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4TVBNOW 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。% Z; s. L6 c$ q6 h
Formula 4 can change into 11x + 5y = 100 Formula 5公仔箱論壇+ e( _1 [0 l% I. s7 f: R
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。+ y; G+ S9 Z9 l7 G7 n) D- E4 {
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.公仔箱論壇1 `6 m! t) q* W, |+ ]
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
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。( n ^; _5 q5 w7 H9 ~
11X must be 0 or multiple of 5 7 Q# H0 G6 x4 W7 e; ythat meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
86 children公仔箱論壇$ R- `7 i6 P& [* Z
5 male # e n! m6 }, k$ [9 ^9 female作者: dafunhei123 時間: 2007-10-15 10:39 PM