推理大挑戰(第四關)

playbr2

相信e條題目都有吾少人玩過,所以今次一於改難些少.....由12粒波子变成13 粒波子......不過對於識玩既朋友,應該都屬大同小異既啫
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" u  ]! W6 E5 M% z: u『有 13 粒波子，有 12粒是重量相同的，有 1 粒是重量不同的 (沒有列明是輕了 / 重了)。
" X8 _# \( |, Y( u現准許使用 3 次天秤。請解釋怎樣才能找出 13 粒內那 1 粒重量不相等 (即是重了 / 輕了) 的波子呢？』5 q( M  D" e1 X# e
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注意: / r2 [9 _$ @2 A* L( a; |) ?' R

- |  f( s3 {: w1. 回答題目時,波子的名稱代號請用使用 1,2,3,.......至13 等數目代表, 即1 代表1號波子 , 13 代表13號波子.....以方便查證
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2. 請回答題目的朋友使用'' 反白功能 '' (即係將D字既颜色改為白色,白色颜色在黑色颜色上一行,透明的呢)穩藏回答答案,費事比其他人抄  , hide 字要連埋 , 內容 = 答案$ U0 z  R! \! A8 t: A/ Z. k' G; q, N" Q
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[ Last edited by playbr2 on 2007-3-1 at 11:54 PM ]

guswan

Originally posted by playbr2 at 2007-3-1 21:34:. O& ]  c) x( P) a) n
相信e條題目都有吾少人玩...

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我以前畫左個chart去答,
1 h/ K1 T8 V# u  C3 w9 S4 P# q等我搵下仲在吾在
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- \2 y; f8 j' J6 M: _4 O6 T0 w9 [當日用左37分鐘答１２粒波子，差７分鐘才合格。/ W1 a# t  ]2 J* R8 j6 w6 x/ c
13.........
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[ Last edited by guswan on 2007-3-1 at 09:44 PM ]

playbr2

Originally posted by guswan at 2007-3-1 09:38 PM:  ?' _. _# }5 o6 \

3 l) t/ E5 F5 q8 i5 X我以前畫左個chart去答,( w7 Q3 Q' v9 H* j6 M* Z) e
等我搵下...

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記得穩藏答案

16749

唔識隱藏...已經諗到..

playbr2

Originally posted by 16749 at 2007-3-1 11:35 PM:( `4 [1 N5 w! E5 A- x, w, {: n9 H
唔識隱藏...已經諗到..

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sor !!!....e加改左, g' L$ ~* t- g; ^  A  e  C

* W, S# E0 f: u- |  D, Y( a2. 請回答題目的朋友使用'' 反白功能 '' (即係將D字既颜色改為白色,白色颜色在黑色颜色上一行,透明的呢)穩藏回答答案,費事比其他人抄: G7 _" R+ {8 t! z, `5 f
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[ Last edited by playbr2 on 2007-3-1 at 11:55 PM ]

Triangel

Originally posted by playbr2 at 2007-3-1 09:34 PM:
0 L- m: }+ r$ L8 e9 }相信e條題目都有吾少人玩...

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PlayPlay, Let me know later who has the right answer and I will add points accordingly.( X0 g  a! V+ N" D" W" G3 }
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Thanks

playbr2

Originally posted by Triangel at 2007-3-1 11:57 PM:" }, Q. i# x8 t( W- o4 z# D8 m! z
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1 N! ?7 _( a3 nPlayPlay, Let me know later who has the right answer and I will add points accordingly.
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Thanks

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不如你都玩吓喇....叫d叔叔加分咪得囉........如果岩既話

Azuma

1.
2 q$ t1 E. ?, ?6 I/ |% m4 P1-6 vs 7-12/ @! W9 c; @# W/ [, X1 |
if 1-6 = 7-12     13 is fake
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Weight the 2 time 1 F+ P! {6 K' b$ G

9 m3 T; Z- D4 u# d8 c( YSuppose 1-6> 7-12
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1-3 vs 4-6
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! W5 J" ^5 b3 G# kThen Weight the Third1 P$ `! K. e% x
3.8 [( H0 H- C, k% N7 S' j% ?% ]$ \
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Suppose 4-6 > 1-33 [. M. o1 J: q6 v5 t

+ Y: j& q3 ^* {& zJust like the first Step9 t- F6 r6 Q! b6 A8 `- Y( u
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4 vs 5
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! t* M. d# [7 t- H6 t- b% Bif 4=5 6 is the fake one
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' D# g/ H+ C) Nif 4>5  4 is the fake one
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9 m5 c2 y& ?/ f# R  ^7 eand so on......................

hello1997

分3組4隻波子秤& B( |- m! I8 a9 d6 M" R' Q/ ~( ~

' f% F: O8 e# e; |" BGroup A: 1,2,3,43 X0 \1 }1 U5 H0 `$ T6 Z1 ]
Group B: 5,6,7,8# [3 l1 X8 J  S# d" B
Group C: 9,10,11,12* |' a  F& w7 j9 L; l- p; x) H
Group D: 13
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. e6 O4 v, g0 K4 n% SRound 1$ v8 F' e; h; N1 K0 Y3 {- }
Group A vs Group B! [: E' E* v$ X  ^: |& L; I5 G
如A and B一樣, 即較輕一粒在Group C or D+ h7 W6 ~  `4 n: U

, \( h# c( `2 i6 d8 g; F* rRound 2
8 C9 J# J, B( q9 t再在Group C拆成:
# X6 N0 L( r+ K) e; w* QGroup Ca: 9,103 V8 Q0 k& Z2 R/ t) h
Group Cb: 11,12
8 T  h! ?4 o: P( h+ E1 b$ a然後再秤, 如一樣, 即13為較輕一粒.
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如不同, 即較輕一組有一粒較輕波子在其中, 3 C% A4 s7 ^3 E6 ]$ {+ k) ?
要再秤, Round 3, 之後便知答案.# x% ?  t# n+ P3 M: U6 ]

$ B! \- \. u. @$ n4 |# @0 Se.g. #1 假設10為較輕的一粒
" p3 \# F( [- k* h; z2 ~- QRound 1
: H) E2 A3 _8 b- S  I1,2,3,4 vs 5,6,7,8 = equal
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7 I7 W8 n$ E; A' eRound 2
% J& A$ t/ w: H+ _; \7 m1 m2 J9,10 vs 11,12 = 9,10 < 11,123 I) G! Q0 [) c# a  S6 w

- V* X: v* W' k$ i8 q+ b4 T% kRound 38 e, r% F9 c' f0 N0 J
9 vs 10 = 9 > 105 n$ z7 Y( h; c! s. B' L" s' \
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The answer is 10., g+ T5 W. \# `% C

: D& h& F* [, z; k, |e.g. #2 假設7為較輕的一粒
; b1 k- Y/ S/ Z$ C( ]Round 1
$ k% |& C* d! Q/ S1,2,3,4 vs 5,6,7,8 = 1,2,3,4 > 5,6,7,8
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( ]& w+ `6 C9 j0 X9 |Round 21 D0 p- v6 i1 B6 @+ }! g( l# r. |
5,6 vs 7,8 = 5,6 > 7,8. }5 x9 G; @: w) _
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Round 3) m0 P: @8 S( r% E( V/ b0 V
7 vs 8 = 7 < 8
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The answer is 7.2 Q5 M/ i2 p4 g0 G. x

  d# i4 }, g: n: p6 ^; }" ie.g. #3 假設13為較輕的一粒, O1 P  }9 {- z5 B6 {5 V- l
Round 1
1 ~0 a- t4 A/ s- a1,2,3,4 vs 5,6,7,8 = equal
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* o! @) ?1 f( lRound 2; P( i4 W8 J+ U3 W3 P1 F2 a
9,10 vs 11,12 = equal# J/ v% P$ h# K3 ~
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No Round 3
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1 E$ q! q/ Z- E, pThe answer is 13.; V# ^% k( `* ]+ [5 ^
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唔知我答得正唔正確呢?!
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) N" D, d9 U; D; ~. b2 n! M[ Last edited by hello1997 on 2007-3-2 at 12:39 AM ]

playbr2

Originally posted by Azuma at 2007-3-2 12:25 AM:: L! R1 H) e  [8 D/ d$ w! O2 u
1.
. R2 L8 `0 R  l9 S: ~: T1-6 vs 7-12. ?7 j2 K3 G/ g2 @( n4 V1 R0 S3 S; v
if 1-6 = 7-12     13 is fake
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if not
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Weight the 2 time
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Suppose 1-6> 7-120 o4 ], {% t+ H( ?! ^  Z

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Then Weight the Third, i$ w2 _( E9 \( {5 O
3.
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Suppose 4-6 > 1-3( ~8 N7 {% P% T( {* G1 e! j0 [
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Just like the first Step& F8 O' R" A! ?3 }; }+ ]  g

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) R" p+ I* c  ]% F/ W7 o  I9 F! M: kif 4=5 6 is the fake one
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( f. Q, A9 T7 _$ J: dif 4>5  4 is the fake one
; T) u- {# H; y9 x# R- \: Jand so on......................

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# g1 v- z9 ]8 G6 T0 f+ w問題第二步/ [# L* {8 C" \& n7 X4 y

8 u6 K  t4 f7 v( B7 S) oWeight 1:  1-6> 7-129 M! f& Z9 S) A

! I2 y! \5 g+ |) S5 A9 }' uWeight 2:  1-3 vs 4-6 , if 1-3 = 4-6
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你第三步点去搵 7-12 边一粒???! j* Q+ A0 W, r2 |) V( ]
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========================================$ i/ z2 f) D5 ?: _

/ a0 K* j) a8 m" D5 Z問題第三步3 r! b0 s! O% z( D% b  R+ h
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Weight 1:  1-6> 7-12
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Weight 2:  4-6 > 1-3
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' q+ a% C  J: i/ g% t, s8 T9 b你又吾知粒波子輕D定重D ..... 咁点解第三步只磅4-6 吾磅1-3 . 如果個波子係輕D ,咁4-6 就一定一樣咁重