100人搬100塊磚公仔箱論壇" \+ {; Q. \ t5 n. v6 _, v
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只何用100人搬100塊磚,不能多也不能小... ' r Z( m- B/ @! `100人當中有男人、女人同細路仔 ' `8 I$ J }( \: H. k6 Z' r5 E公仔箱論壇1個男人搬6塊磚5.39.217.772 t( l. i: j$ z: u
1女人搬3塊磚 * ^+ }* g' O( t公仔箱論壇2個細路仔搬1塊磚公仔箱論壇+ _% r2 m' F$ \' U+ Q4 R
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問搬100塊磚5 K% S* e5 n( B( `
要幾多男人、女人同細路仔2 k o" h1 e0 L( p
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答案30號公佈 ' U# v$ _' R# Z0 e5 O5 C1 F$ G2 jTVBNOW 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。 9 } I; @- I& ^ ?" q5.39.217.77[ 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. # t& t) @$ p5 c0 R$ M- S$ ctvb now,tvbnow,bttvbLet x = Male, y = Female, z = Child5.39.217.77( u( n( V/ a( z* L2 i
6x + 3y + z/2 = 100 Formula 1 " x- o$ o6 c @7 l% ftvb now,tvbnow,bttvbx + y + z = 100 Formula 2tvb now,tvbnow,bttvb5 H& C. `" I& D
Simplify Formula 2 into z, we get z = 100 - x - y Formula 3公仔箱論壇1 }$ X5 i" }. x! X: ^
Sub Formula 3 into Formula 1, we get 6x + 3y + ( 100 - x - y )/2 = 100 Formula 4 2 |2 R A" K0 R& h* q4 u0 Y2 |Formula 4 can change into 11x + 5y = 100 Formula 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。* L' M4 Q( A' W/ u l2 n
In Formula 5, x can only be 0 - 9, otherwise y will be negative number which we dont want. , w5 |* k# D) ^* p公仔箱論壇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. / }$ I$ W2 q0 X/ I" F# G! 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。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 & y0 J. Z2 ~9 V. `4 A0 Y7 X) D; a公仔箱論壇0,20,80 or 5,9,86作者: RyanC 時間: 2007-10-14 10:46 PM
: V' s, t+ `+ N6 K11X must be 0 or multiple of 5tvb now,tvbnow,bttvb3 I$ W7 \$ ?1 L Y% m0 A
that meanz x must be 0 or 5作者: manstein 時間: 2007-10-15 08:28 PM
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