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playbr2 發表於 2007-3-1 09:34 PM

推理大挑戰(第四關)

[color=Teal]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[/color]:lol::lol:
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[color=Blue]『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)。U8]nx+~.g.G
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?』[/color]4E3`x3b3E1~I

H0iP/R9Q [color=Red]注意: [/color]o(Rq1I {{8UqN

P:Y;]'M:\2{!M4GzRA [color=Red]1.[/color] 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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[color=Red]2. [/color]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
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[[i] Last edited by playbr2 on 2007-3-1 at 11:54 PM [/i]]

guswan 發表於 2007-3-1 09:38 PM

[quote]Originally posted by [i]playbr2[/i] at 2007-3-1 21:34:
g6C0Oc+S@ [color=Teal]相信e條題目都有吾少人玩... [/quote]%{I:dX$L0L4YJ
我以前畫左個chart去答,
C"G\5xe"k se0C? 等我搵下仲在吾在:D:D:D!?]$@!}H

Q7O K7C0Q)L;u 當日用左37分鐘答12粒波子,差7分鐘才合格。HWzBg-R|Uk]6[
13.........5VE)Fg|/^a)j
:b/K C_ ^|/`2z
[[i] Last edited by guswan on 2007-3-1 at 09:44 PM [/i]]

playbr2 發表於 2007-3-1 10:07 PM

[quote]Originally posted by [i]guswan[/i] at 2007-3-1 09:38 PM:/L(o:c4w+|Z%HjA
7[!N(lt,j;C`kW-h8j:d
我以前畫左個chart去答,
6JDs%}Io2W 等我搵下... [/quote]1uE#s(r6P;? w

H-YD%Q0OMZq 記得穩藏答案

16749 發表於 2007-3-1 11:35 PM

唔識隱藏...已經諗到..:help:

playbr2 發表於 2007-3-1 11:42 PM

[quote]Originally posted by [i]16749[/i] at 2007-3-1 11:35 PM:8kyn-n4B
[size=6][color=Green]唔識隱藏...已經諗到[/color][/size]..:help: [/quote]
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R(J7Yo*D9A'Nalz e [color=Red]sor !!!....e加改左[/color]
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4Re+c!z7YfB4V0T [color=Red]2. [/color]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 ^ z!v&U8O,x_
Z} g d8RwRX0l X
[[i] Last edited by playbr2 on 2007-3-1 at 11:55 PM [/i]]

Triangel 發表於 2007-3-1 11:57 PM

[quote]Originally posted by [i]playbr2[/i] at 2007-3-1 09:34 PM:
@xy q$s n D [color=Teal]相信e條題目都有吾少人玩... [/quote]I5]FG^E\
[,fT.FD|S
PlayPlay, Let me know later who has the right answer and I will add points accordingly."uVO5c^0\1s d#H

w/A/f{!mX-T8D.t D Thanks

playbr2 發表於 2007-3-2 12:03 AM

[quote]Originally posted by [i]Triangel[/i] 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. m"yq'p"E0o
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Thanks [/quote]&i9Qp5Uz

[0qVrkCj)\ 不如你都玩吓喇....叫[u]d叔叔[/u]加分咪得囉:agree::agree:........如果岩既話:lol::dev::D:D

Azuma 發表於 2007-3-2 12:25 AM

1.
:xRUHS 1-6 vs 7-12
Z/B6p7x4\ if 1-6 = 7-12     13 is fake|2S yPh2h(T
v$|T$hh/p+D
if not c W*g0X^@3S

*AY4Pc%|g3A Weight the 2 time ~RJT(`
,]-q)wm] b
Suppose 1-6> 7-12
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u.q n!?H1z B4G 1-3 vs 4-6 W4u8rF8o$chH [8]
C^2W#a.? P*g[^$`f
Then Weight the Third(i7[5p5h\
3.$B(n.gH3cS,M[ sh

&Cy^ I,\wIt Suppose 4-6 > 1-3
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Just like the first Step H{-E`3{;W

$d`}!o%Xm 4 vs 5
t!K;cS$l
@S;]+yx D$t"pAo if 4=5 6 is the fake one
u^M E;t!h&E ? j1X{.p q _
if 4>5  4 is the fake one #S ~9zOqe'^kt
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and so on......................

hello1997 發表於 2007-3-2 12:35 AM

[color=White]分3組4隻波子秤
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Group A: 1,2,3,4\7[0JVsM/P
Group B: 5,6,7,8co,jDB)v oD
Group C: 9,10,11,12
1_ nj w'Oy#hiM4U;R Group D: 13
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;C-A;T7[+LFn a Round 1n? }.Hz,n
Group A vs Group B"I#T8c `CO3R
如A and B一樣, 即較輕一粒在Group C or D
-~ j3LsJ0AN }}[l _)v$p zq
Round 2
$DY0lLc;xm n'r&y[-q 再在Group C拆成:
x/K-J$Ky Group Ca: 9,10
fU3R V D#y"vU'xAd Group Cb: 11,12@z$B*xv.K$Z2f.go
然後再秤, 如一樣, 即13為較輕一粒.
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(M9ZG$wy 如不同, 即較輕一組有一粒較輕波子在其中, :t6sA r%mE
要再秤, Round 3, 之後便知答案./H-ag\`b~

(K-^6]py-a D Ph$t)X+o d1D e.g. #1 假設10為較輕的一粒R0l7R/} MlV5G
Round 1
g hSc~&L n^ 1,2,3,4 vs 5,6,7,8 = equalNaE0cB-x

CxxI$B5Wn-k Round 2
I g7\`+nL 9,10 vs 11,12 = 9,10 < 11,12z Yo7e |+rZ'y.`

[AX-b:TJT(f Round 3!`WB5D.W"C2px
9 vs 10 = 9 > 10]OvJR)f
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The answer is 10.
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?K"en/y2`0kNo e.g. #2 假設7為較輕的一粒*\ V+V*W%Q | B
Round 1&SW}7Dq_
1,2,3,4 vs 5,6,7,8 = 1,2,3,4 > 5,6,7,8D?/`1\W`

*];\9Y2E` Round 2sc+tB)_V,Ij
5,6 vs 7,8 = 5,6 > 7,8 D pBx&_Q.v
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Round 3b4I,l n3Ef
7 vs 8 = 7 < 8]d w.h a HnI
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The answer is 7.y V c c-J0g:o j#X
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e.g. #3 假設13為較輕的一粒
1uce%P py^1y Round 1
3sV;v|n 1,2,3,4 vs 5,6,7,8 = equal
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1H ll2i;f Round 2?'Yu Z wy/D
9,10 vs 11,12 = equal,Y;B])N$J]F
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No Round 3
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The answer is 13.[/color]_#{(f.fcM$_%@
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唔知我答得正唔正確呢?! :agree:
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[[i] Last edited by hello1997 on 2007-3-2 at 12:39 AM [/i]]

playbr2 發表於 2007-3-2 12:48 AM

[quote]Originally posted by [i]Azuma[/i] at 2007-3-2 12:25 AM: _S,cF:H!Td lO:l
1.
,D*h z5W s&eJ7H _!CT 1-6 vs 7-12
ba|B0r{;L |A if 1-6 = 7-12     13 is fake-Bam V{8g

z#FFA?xtR}0B if not
%A/HM(d3C@E'C$|J
!xv/@n%V8z ^ D [color=Red]Weight the 2 time /j+I+cG0O
U4E3F3? e \
Suppose 1-6> 7-12 ?X1n(p&_Yo
A;_n9zdd9z
1-3 vs 4-6 [/color]\M'y} sa|l,r5h

F"dSK0OJe [color=Blue]Then Weight the Third
(x,h[W4h }-G)Z5X 3.6[ Z(C"I"OX\2js:b.s

dg:ze?%dd%f2d3^Z_ Suppose 4-6 > 1-3"_9Q4EG/l
w%[ oJX9U@
Just like the first StepkFpX9o6sV
^c4KDD(` I
4 vs 5
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#CL.g-Xi8N\ if 4=5 6 is the fake one
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Hd(J+i1k#R2P%d if 4>5  4 is the fake one [/color];`a+kSOWKY
and so on...................... [/quote]
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[color=Red]問題第二步[/color]h.{ L.|l6xf2W
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Weight 1:  1-6> 7-12\)C WMO:k$W D

_5hBY!_-r Weight 2:  1-3 vs 4-6 ,[color=Red][size=4] if 1-3 = 4-6[/size][/color]PLO&\bR
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你第三步点去搵 7-12 边一粒??? SD&v?3v.`i-{

aPv-O'H8wm ========================================)\q0^2m#Sg0HK L]

'{~,u3O aC [color=Blue]問題第三步[/color]
'QVd.@ i
2~0U'?F&\\6U Weight 1:  1-6> 7-12U:E lp#J7P5f6S

8jMK;^r/y#I Weight 2:  4-6 > 1-3
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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 :naughty::naughty:

Triangel 發表於 2007-3-2 01:04 AM

[quote]Originally posted by [i]playbr2[/i] at 2007-3-2 12:03 AM: [W1|(gkRm\TW
1|$W |1p}(God N
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不如你都玩吓喇....叫[u]d叔叔[/u]加分咪得囉:agree::agree:........如果岩既話:lol::dev::D:D [/quote]
QQGg4^E !R+M6jd;r
我邊夠IQ玩,加分我就識(加分唔洗用腦架:dev::P)

guswan 發表於 2007-3-2 01:10 AM

playplay,
?,s#Z1LJ 駛唔駛連輕左或重左都要知?
9z$R1oT'T~@Z } 12粒就可以,13粒......

easy_man 發表於 2007-3-2 01:54 AM

hehe ~ 睇到問題之後引唔住手睇埋人地既答案 ~~AmaC(N
但係佢地好似都錯左 :help:

playbr2 發表於 2007-3-2 01:55 AM

[quote]Originally posted by [i]guswan[/i] at 2007-3-2 01:10 AM: d-hO9U0@8i
playplay,
!h:C^p)D 駛唔駛連輕左或重左都要知?
/N%E!]5|9I JA 12粒就可以,13粒...... [/quote]'V)m9|,Nxn a4t C g5Nm
Edl` y W!I A T
如果將個答案攞去做實驗.......最後真係會知边粒波子輕左或重左.......不過係文字上,輕左或重左都冇乜所謂(又比左Tips :lol:)}g8B0yRE
PmpNlwH6N
13粒 一定得 :agree::agree::agree:

playbr2 發表於 2007-3-2 02:05 AM

[quote]Originally posted by [i][color=Red]hello1997[/color][/i] at 2007-3-2 12:35 AM:!?,|)BTbOXy
[color=White]分3組4隻波子秤jg/Nw:i5yH6`

B"E'R4@n:~c Grou... [/quote]q5e,^.Qa ?
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吾知輕左定重左喎.......冇得咁假設 ---> 『一早知边粒輕左/重左 』使問由''已知的假設答案''出發,又点會推算出岩答案;););)

playbr2 發表於 2007-3-2 02:07 AM

[quote]Originally posted by [i]Triangel[/i] at 2007-3-2 01:04 AM:LvNv*U7R

*I]|%UC$d${ 4y7Hb'J1_
我邊夠IQ玩,加分我就識(加分唔洗用腦架:dev::P) [/quote] Gx~w`9}*t P
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頑童俱樂部  #64580 :confused: ok 嗎???

feuosma 發表於 2007-3-2 02:19 AM

[quote]Originally posted by [i]playbr2[/i] at 2007-3-2 02:07:
k\8]*]K%W \E-s}!h/B

^ii4\ e6]r q:IiP't 頑童俱樂部  #64580 :confused: ok 嗎??? [/quote]
*H9d CQ Oc,o
9p[0?$`H+ov'\4@1a| 冇勇氣面對你...不過至少有勇氣答你既問題.....我答完覺得仲係有d唔妥......不過我好相信我呢個應該好接近答案..........去片...
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[color=White]先將13粒波子分為5份….姑且叫佢地做A,B,C,D及E…8^~i i?*V
A,B,C,D四份都係3粒波子…..最後E果份就係1粒波子….8A-KP e8[N1NR{9B
咁果一粒當然一定晌A,B,C,D,E果五份是但一份到…."Q snS;J5G+YI

?:EB ~ \Wpf 先假設果一粒晌E果份到…..咁就簡單….
QhM'gF 先磅A同B….大家都會係一樣(第一次磅)….
1U;\;O Mh-K3A 跟手磅C同D….大家亦都會係一樣….(第二次磅)…!q(vW[ q
最後再攞A或B同C或D磅(即A vs C/ A vs D/ B vs C/ B vs D/是但一個都冇所謂)….大家亦都會係一樣….(第三次磅)… W*N B,q;c,IG!p"z
咁樣就證明左A=B=C=D…咁果粒當然就係E啦…..7Jq*VJ/C'JmR

Xs U\/BQ2l q 世事當然唔會咁簡單…..如果果粒唔同既晌A/B/C/D度又點???,H.[s T9L W`
假設佢晌A度…..;g^ H5`%a
先磅A同B….A對比B會係輕d/重d…(第一次磅)….
A8CV_Q+J6Z 跟手磅C同D….大家都會係一樣….(第二次磅)…
Z}u] C`Z ~!c+v 係咁既情形下即係果粒唔同重量既一定晌A入面…..最後再攞A入面是但兩粒黎磅…(第三次磅)…如果係一樣既…..咁剩低冇磅果粒當然就係唔同果粒啦…..
0Ao0m7V`&s 如果磅出黎係唔同既….咁就要睇番當初第一次磅既時候….A同B比較時究竟係輕左定重左…..如果係A重d既話…即係話果粒唔同既係重d既….咁晌第三次磅既時候重d果粒就係唔同果粒啦………. 如果當初係A輕d既話…即係話果粒唔同既係輕d既…咁晌第三次磅既時候輕d果粒就係唔同果粒啦……….gf+a t+Gp$kL
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而晌咁既情形下E無論點當然都唔駛磅啦…..(佢一定唔係唔同果粒)…pu_Y;c&E
(IeuS$?Dbr
如果果粒唔同既晌B/C/D度都係用一樣原理咁抽佢出黎……[/color]

guswan 發表於 2007-3-2 02:20 AM

做完,可唔可以scan圖,點隱藏圖?jhkna sxm
有排打.

playbr2 發表於 2007-3-2 03:07 AM

[quote]Originally posted by [i]guswan[/i] at 2007-3-2 02:20 AM:
Ko(NX"^CYpp 做完,可唔可以scan圖,點隱藏圖?
W} E-m[u Or 有排打. [/quote]&c/r-r j#s0A&u3CX3b4P

Oty4Im&s,\ 你scan圖 , 之後zip (再加密碼)......你e+係度嗎???.......去[甘肛] 上載附件 所需 積分 1290 , 我下了會call你, 你就馬上 dele 吧 ...... 第二日,再揾機會比密碼:agree::agree:

playbr2 發表於 2007-3-2 03:16 AM

[quote]Originally posted by [i]feuosma[/i] at 2007-3-2 02:19 AM:
p-eSU#E`;\"U
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&}+a_FG;{2T 世事當然唔會咁簡單…..如果果粒唔同既晌A/B/C/D度又點???
r P7~[ qN,hp [color=Red]假設佢晌A度…..[/color]
+T#HB1z }Z q 先磅A同B….A對比B會係輕d/重d…(第一次磅)….
:q)i2[,i$sBI0S:Nh#a 跟手磅C同D….大家都會係一樣….(第二次磅)…;E m9i qL v
係咁既情形下即係果粒唔同重量既一定晌A入面…..最後再攞A入面是但兩粒黎磅…(第三次磅)…如果係一樣既…..咁剩低冇磅果粒當然就係唔同果粒啦…..
p C9j,~2I-K0]gs 如果磅出黎係唔同既….咁就要睇番當初第一次磅既時候….A同B比較時究竟係輕左定重左…..如果係A重d既話…即係話果粒唔同既係重d既….咁晌第三次磅既時候重d果粒就係唔同果粒啦………. 如果當初係A輕d既話…即係話果粒唔同既係輕d既…咁晌第三次磅既時候輕d果粒就係唔同果粒啦……….a&M;~U sC P

@.~G-aK 而晌咁既情形下E無論點當然都唔駛磅啦…..(佢一定唔係唔同果粒)…
O;a(hZE5hGkx !? R_ flI
如果果粒唔同既晌B/C/D度都係用一樣原理咁抽佢出黎……[/quote]
OXU:e:? I9Mn!D/j;ZS ` Ut+b,i
一早假設了答案,不會得出最後正確答案,只會[color=Red]人為地[/color]製造出假設答案 , 如果你的[color=Red]假設[/color][color=Blue]不成立[/color] , 你下面的推算皆錯!!! :):):)

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