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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:i6hQi^
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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)。
k p4^/N)a!epN9k 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]
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J3Q|_D'jo(O [color=Red]注意: [/color]
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[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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#~5@_?Q&?+k [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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Ds.o5F0J [[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:V_3oT!GU
[color=Teal]相信e條題目都有吾少人玩... [/quote]6@7U E R md@_-]x S1f
我以前畫左個chart去答,&X8w ]4q"n1Q)Y8Af
等我搵下仲在吾在:D:D:D3v _$Ok|N9Bi$I
~ uC6j3R.Rg_
當日用左37分鐘答12粒波子,差7分鐘才合格。
$g&Y[Ea[J@ 13.........
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q!R-SF}9vH [[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:S2JM?"RP ~

.q5L2_ Q&vna b#b 我以前畫左個chart去答,!B R(w1SM`x
等我搵下... [/quote]
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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:
X-Fed"A [size=6][color=Green]唔識隱藏...已經諗到[/color][/size]..:help: [/quote]
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[color=Red]sor !!!....e加改左[/color]
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.`6UO,nQ(l [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
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[[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:
od I;IY:\6] [color=Teal]相信e條題目都有吾少人玩... [/quote]n/KFg*V;kMF!k
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PlayPlay, Let me know later who has the right answer and I will add points accordingly. ~:I9V9~ \p_5m
kM$CTd)v:si
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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I2H7Rc3P PlayPlay, Let me know later who has the right answer and I will add points accordingly.la!o1Vr8v$M [!b

htYY7Uz? Thanks [/quote]
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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

Azuma 發表於 2007-3-2 12:25 AM

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1-6 vs 7-12&_K6w"S `N!d
if 1-6 = 7-12     13 is fakertF,N)z

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e+u2~#h J d Weight the 2 time hj2sy I9h}u

~&U(]o%wO Suppose 1-6> 7-12|0wZ ph^u
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1-3 vs 4-6 9[&Fz!g%g4x
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Then Weight the Third
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EA n U)sKj_-_+Xc#} a
XuOoF Suppose 4-6 > 1-3
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Just like the first Step
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j h'fU+o _W^j 4 vs 5
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;w9x"`a-a7Y%f&| if 4=5 6 is the fake one
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2v^1j%dX._[3N"?3SW if 4>5  4 is the fake one bYIhwB

3`g1m eY @8U;{9@ 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: 1,2,3,4p'g4ye U ^Z+Q@.]&u
Group B: 5,6,7,81f$ryow&Mj sm
Group C: 9,10,11,12p#IOQSyk1i
Group D: 13
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*C&@_[MN?:T Round 1m t$H$l0X&an%hU
Group A vs Group B
[-e n7HR%Pc 如A and B一樣, 即較輕一粒在Group C or Da7dx3SOVI1LF

t-v,o/L*H Round 2
:R$c:rams 再在Group C拆成:
2N)RE;n%i Group Ca: 9,10\1o7Wb@ vw_f
Group Cb: 11,12
5juv"\)Usd 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, %u FJ ?W@G!l
要再秤, Round 3, 之後便知答案.
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e.g. #1 假設10為較輕的一粒
}\l9m W Round 1
IgiME FA.I 1,2,3,4 vs 5,6,7,8 = equal
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Round 2h9q6Y7a"Y L Gq
9,10 vs 11,12 = 9,10 < 11,12E1^ eK2O[
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Round 3 s%f7}hnBBe
9 vs 10 = 9 > 10(FuZ2U3B&E x
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The answer is 10.6De1LIU5Vy3R

_mmeFw Y e.g. #2 假設7為較輕的一粒2v0T0s*K*H~ sKJ$e
Round 1
OR`*IMg_5y c 1,2,3,4 vs 5,6,7,8 = 1,2,3,4 > 5,6,7,8
pA q}:IZ7r1I ofNR6PQ2MS
Round 2
m,k\ Q*a#Mh5X9R0z5G { 5,6 vs 7,8 = 5,6 > 7,8
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Round 3 J+] i X6\W9Y
7 vs 8 = 7 < 8
!k6EA#V2~FP ] -U{Q#} vl6b6D"^2hq
The answer is 7.+}lg qdA+^

'u0J;wX,}4T lHY e.g. #3 假設13為較輕的一粒
'O1A N9qZ$rY Round 1{-L!bFHzO]KCa@
1,2,3,4 vs 5,6,7,8 = equal$QfQ'c Y|

}y d,H#} Round 2
l_cc_L6[8{m$Y.J 9,10 vs 11,12 = equalY9ckl.@
yYc6NU3y
No Round 3
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The answer is 13.[/color]!p6GMN*An \jX

)I5Y\;\ A:F 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:
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1-6 vs 7-12
'[-KC ga.a if 1-6 = 7-12     13 is fake
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if not oq4`(@`-J+fd

m){.h1D,d!I+~-H [color=Red]Weight the 2 time `.I*A*V"N+m1Q4B"| g
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Suppose 1-6> 7-12_ N4i2t5A x

{ `#Uk v1w*} 1-3 vs 4-6 [/color]r+C5vP4o@8hT0A

t-B7]O'@/I({ [color=Blue]Then Weight the Third
`?$c;gW pS 3.`4uP9X9R S b
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Suppose 4-6 > 1-3 w }J3qTh'z:g9V:P8T
lV }HXR
Just like the first Step;L9y*Z:e7L&R tr

R2K6lX#f 4 vs 5 d(f Z%U7l:Hz
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if 4=5 6 is the fake one
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if 4>5  4 is the fake one [/color]F%E6mm"J#Q)j
and so on...................... [/quote]
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N_x-toG [color=Red]問題第二步[/color] h@El a p

J9fSTm Weight 1:  1-6> 7-12
1m8m(RSO1r^w]q*V{ \(C3x$~(jhI
Weight 2:  1-3 vs 4-6 ,[color=Red][size=4] if 1-3 = 4-6[/size][/color]
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你第三步点去搵 7-12 边一粒???-d IJa]9{] N:F

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_u7VQ1uv [color=Blue]問題第三步[/color]
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3Q} SLg Weight 1:  1-6> 7-121Z!W0AU2]v
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Weight 2:  4-6 > 1-3 6fl(Q8bPq"m&jT'M$^Ib
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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:
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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]
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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,
.x(F*Q S&H;O?QQ,Xi 駛唔駛連輕左或重左都要知?
Xf){Xj6G 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 ~
j$U"w8h @ 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:,w:ASa4}T:dY~
playplay,
1H`f#zM`kO6P$oF 駛唔駛連輕左或重左都要知?
3E+Y4p*z9zd{b%? 12粒就可以,13粒...... [/quote]yg4V.X6s h+R
/]JmC;v@,EF
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:)
']H,w/KH
0X'];y5~ D^ 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:!n ^ W.m DhL
[color=White]分3組4隻波子秤5X*G&C^3Q vM6ae {

0@?/d@c'~ Grou... [/quote]*V H#JO ^ S'C

&R@&F a5m q 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:
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我邊夠IQ玩,加分我就識(加分唔洗用腦架:dev::P) [/quote]
:KV w x(v7h-e
1a(g}1[wy$\ S+m 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:
)CXZI2BaEK~{ P*Md,W}%[f
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頑童俱樂部  #64580 :confused: ok 嗎??? [/quote]
s0EG$b2o&F#r9d\? tTNU9Jvz
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..._5Q/T:o:]Oe
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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…
V E0Fx^.T6j A,B,C,D四份都係3粒波子…..最後E果份就係1粒波子….
;T3U _0w bOY5G;b 咁果一粒當然一定晌A,B,C,D,E果五份是但一份到….:go)A]5C#IgF
AD0G9J&iN,u
先假設果一粒晌E果份到…..咁就簡單….
'W!bv-T;e6p ld~ 先磅A同B….大家都會係一樣(第一次磅)….
t l.y2lC7sA3lZHz 跟手磅C同D….大家亦都會係一樣….(第二次磅)…q%Q.r"q A6ve2u,c
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)…
FeB8Lep0@ 咁樣就證明左A=B=C=D…咁果粒當然就係E啦…..3QTGi r N5hQ

2q4a.ZSy2KxN)Cn 世事當然唔會咁簡單…..如果果粒唔同既晌A/B/C/D度又點???Iq[,B-Z8JTs1D
假設佢晌A度…..
S*g!\#sK8W/c 先磅A同B….A對比B會係輕d/重d…(第一次磅)…. ~dyZq'N
跟手磅C同D….大家都會係一樣….(第二次磅)…
.gh.}T^ 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…..
3l-?LR@ w1Y;_6|:qT 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……….
6L9f4d2dM
}^ bP"Nu:jo)sI 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)…V\)AE6|Fu
"y,bJm6y*Os/Z
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?
.CA4h z4sw 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: p@7J+n&E~2@
做完,可唔可以scan圖,點隱藏圖?
}o9N\6D 有排打. [/quote]
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A%g7j5r)R*IzS2D0Q6S 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:j5Un9lU U

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世事當然唔會咁簡單…..如果果粒唔同既晌A/B/C/D度又點???
~+`e`@t$Yme [color=Red]假設佢晌A度…..[/color]]^ [5|Ma
先磅A同B….A對比B會係輕d/重d…(第一次磅)…. *d"wsAg!zE.l6t0}yH
跟手磅C同D….大家都會係一樣….(第二次磅)…
;`Y5g}#g4O.LM 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…..CC!q,P,V Fg
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……….3n1a2v{lC

~Oa2L9s} 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)…
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+|3@*pm4L 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])v0khI p`1@#Qqe

Y0Q nl!S 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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