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" _6 U9 s4 u  x7 R; I" u9 _
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『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)。
1 Y& W" ~3 f1 N% w1 |5 c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？』
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注意:
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# v0 J  z4 r9 s: u% v1. 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0 a1 n) U+ K" H! q" r* {9 \
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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 21:34:3 R3 ]$ D* B' U6 C/ w0 O" ~
相信e條題目都有吾少人玩...

! H7 z" p& X# |( z; r: |. ?7 \我以前畫左個chart去答,' A! t$ m8 g9 G7 V, ~2 A+ Y0 K
等我搵下仲在吾在. N: p, M, B( r9 |& }# L  v9 C
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當日用左37分鐘答１２粒波子，差７分鐘才合格。
4 Z% H" U, a# O2 D5 I13.........5 J% V) T0 k" u* s% d
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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:
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8 ^  c; Q2 o( c我以前畫左個chart去答,% j: H' ^, `8 y, I# D  k- i5 m" w' q
等我搵下...

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, r0 Q* z! Q! E6 ~! w, x$ G( p5 r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:
3 C# o: b2 V% d; @8 r唔識隱藏...已經諗到..

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sor !!!....e加改左* J* F* r7 O' w' ]* U
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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: M$ [+ q; y' X6 Z

. q5 J  Q- y: i( X# n. d% ^. e6 u! C[ Last edited by playbr2 on 2007-3-1 at 11:55 PM ]

Triangel

Originally posted by playbr2 at 2007-3-1 09:34 PM:
" ~% T$ W( Y9 e  p相信e條題目都有吾少人玩...

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0 C- m  d. J( W4 G% n# l8 C+ O  k0 {PlayPlay, Let me know later who has the right answer and I will add points accordingly.
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Thanks

playbr2

Originally posted by Triangel at 2007-3-1 11:57 PM:
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PlayPlay, Let me know later who has the right answer and I will add points accordingly., a' I. a( r$ @! o- o' J

/ ]0 g% `1 ~/ a0 yThanks

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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.
! a! Q+ A$ i. L' ]1-6 vs 7-12# ?8 |) s3 S% o0 v! l; }6 M3 ?
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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( {" C8 i0 f% t: A9 M6 r# oSuppose 1-6> 7-12! ^& U: l+ `7 y- s

- c8 u% O: s1 E1-3 vs 4-6
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0 x+ J& B: \& K5 _1 V* C, G: mThen Weight the Third
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: n8 g! t( Y7 W2 qSuppose 4-6 > 1-3) @2 }  m. _2 v0 a( i7 L2 a( P
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Just like the first Step
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4 vs 5
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& u1 D! K6 R6 ~8 B; i2 |& j& Q/ i) V  Gif 4=5 6 is the fake one & n" R  k, c8 S1 r' S

3 n* v% \$ y( b; U: z( g- Y) |if 4>5  4 is the fake one
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7 w9 D& u' Y# J8 y: r0 eand so on......................

hello1997

分3組4隻波子秤
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- b8 a+ R0 ?( `8 K$ vGroup A: 1,2,3,47 K% q) V5 W4 O% v+ j* r
Group B: 5,6,7,8; ^/ j9 u8 Y. C( u9 I- ?
Group C: 9,10,11,12
+ p+ U4 J; ~+ S/ u) D# w- |' qGroup D: 13
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Round 19 f' w" l6 x8 ^. j
Group A vs Group B. d7 a$ q. F6 y8 M" w9 z
如A and B一樣, 即較輕一粒在Group C or D
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Round 2
* z7 `/ l8 _- A$ \, g3 H( I再在Group C拆成:/ h, R: u3 y1 x( ?" a- m2 [: E
Group Ca: 9,10
- Y% u% p" R  Q2 D5 a4 V$ X( q, V+ fGroup Cb: 11,12" O6 S+ |2 M) x! l. H
然後再秤, 如一樣, 即13為較輕一粒.9 \( r! w9 v: \6 F7 u% s) C9 t/ K

+ v* y: ?; M: s. O$ X6 ?+ d如不同, 即較輕一組有一粒較輕波子在其中,
5 K- M8 b" Z" O9 }3 o要再秤, Round 3, 之後便知答案.8 m- v0 G1 A7 d& [* ~% B

0 v& D8 f  C! u5 Q9 ze.g. #1 假設10為較輕的一粒
5 k' E) o5 R) ~2 H) A* J- {Round 1
7 P" y# }( m8 m  R1,2,3,4 vs 5,6,7,8 = equal
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( l8 R8 H. U+ A; f+ L2 }Round 2( M: P4 c0 H# g* z/ c) B" d' s; W
9,10 vs 11,12 = 9,10 < 11,122 V, p: V0 S( h* _4 l( ~
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Round 3: E  g0 v# O$ c4 Y$ K) J. y
9 vs 10 = 9 > 10
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The answer is 10.
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9 @9 n' T1 l/ }" O  Qe.g. #2 假設7為較輕的一粒' T8 N7 }+ ^8 P: C6 y" Q" b' i
Round 1) n/ D& T6 C$ q0 y, O: v0 F
1,2,3,4 vs 5,6,7,8 = 1,2,3,4 > 5,6,7,8$ X& Z% ?  u3 B2 q6 N0 K

  p2 @- }4 w, u3 G& s% kRound 24 L$ C6 J, i6 W0 j
5,6 vs 7,8 = 5,6 > 7,8: |6 C+ C9 M2 Z/ F
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Round 3
2 P# m$ R8 m3 F, P. S6 |) F7 vs 8 = 7 < 8
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7 x! B8 k( x1 P6 G, CThe answer is 7.  C9 D9 i0 I- B# g3 j5 r7 C5 i1 _

8 _( c; k9 b+ A/ {  c. ]e.g. #3 假設13為較輕的一粒0 q' g3 |; C  N2 t0 b; Q3 L1 M4 I
Round 1. F, [' b: ~- F5 \/ n/ j
1,2,3,4 vs 5,6,7,8 = equal; g! X1 h, e6 c; a+ U/ ]
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Round 2
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0 v- }* a8 Z* ~4 ?1 xNo Round 3
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2 b3 ~3 ~! ?& P) `9 H4 W4 sThe answer is 13.% V+ `  i/ ]  ], `4 E4 H

5 i' i( F) e8 S唔知我答得正唔正確呢?!
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% t4 A  l& E- Y8 p- a[ Last edited by hello1997 on 2007-3-2 at 12:39 AM ]

playbr2

Originally posted by Azuma at 2007-3-2 12:25 AM:( P* e! j0 [5 R' ]8 x$ G
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1-6 vs 7-12+ h- z) ^3 H* R" Z0 a# g
if 1-6 = 7-12     13 is fake4 q. l6 g0 e3 z+ X0 g4 `
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if not
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! l8 R1 G; u; q2 ZWeight the 2 time 7 B& I9 _* \9 x$ b$ _& \7 |

. V  d1 @9 `7 I0 S" M+ W0 h6 |, ESuppose 1-6> 7-12
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1-3 vs 4-6
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9 J& H3 ?, ^0 @! j/ r& h. {Then Weight the Third
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Suppose 4-6 > 1-3
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Just like the first Step
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4 vs 5
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if 4=5 6 is the fake one 1 ?7 R. ^* i1 s8 M
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if 4>5  4 is the fake one
3 G& ?6 d. K" x$ j( gand so on......................

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. I+ a- w, ?4 q問題第二步9 T# c  X! C0 A4 U' C2 D( c
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Weight 1:  1-6> 7-123 N/ ?: ~' T( A% M! q" t3 }5 u
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Weight 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???1 l! R3 X7 K* P: S
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& g' l- }8 T: T$ L7 S: `問題第三步
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Weight 1:  1-6> 7-127 U* l6 I: H- N! I" m. I# g% f

3 v! B  x/ I0 t; |5 m8 W: X' W! ]Weight 2:  4-6 > 1-3 , j9 K. s3 W+ {. R5 H
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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