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:,pI2_@.W%r lC w
[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)。
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]"XzaG*vq7Q'Pg/R
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[color=Red]注意: [/color]#@d$t A([!Nh
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[color=Red]1.[/color] 回答題目時,波子的名稱代號請用使用 1,2,3,.......至13 等數目代表, 即1 代表1號波子 , 13 代表13號波子.....以方便查證 T e5kor
[color=Red]2. [/color]請回答題目的朋友使用'' 反白功能 '' (即係將D字既颜色改為白色,白色颜色在黑色颜色上一行,透明的呢)穩藏回答答案,費事比其他人抄 , hide 字要連埋 , 內容 = 答案'qGd D){
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[[i] Last edited by playbr2 on 2007-3-1 at 11:54 PM [/i]] [quote]Originally posted by [i]playbr2[/i] at 2007-3-1 21:34:
[color=Teal]相信e條題目都有吾少人玩... [/quote]q:yy bLRLXj
我以前畫左個chart去答,
等我搵下仲在吾在:D:D:D
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當日用左37分鐘答12粒波子,差7分鐘才合格。(U#P$Q0b*A*h P4Rl
13.........
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[[i] Last edited by guswan on 2007-3-1 at 09:44 PM [/i]] [quote]Originally posted by [i]guswan[/i] at 2007-3-1 09:38 PM:
我以前畫左個chart去答,nO1xSi a t%l
等我搵下... [/quote]M%N;rY3H!W r
記得穩藏答案 唔識隱藏...已經諗到..:help: [quote]Originally posted by [i]16749[/i] at 2007-3-1 11:35 PM:
[size=6][color=Green]唔識隱藏...已經諗到[/color][/size]..:help: [/quote]
[color=Red]sor !!!....e加改左[/color]
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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
[[i] Last edited by playbr2 on 2007-3-1 at 11:55 PM [/i]] [quote]Originally posted by [i]playbr2[/i] at 2007-3-1 09:34 PM:
[color=Teal]相信e條題目都有吾少人玩... [/quote]yI(j4?T2ix.|
PlayPlay, Let me know later who has the right answer and I will add points accordingly.
Thanks [quote]Originally posted by [i]Triangel[/i] at 2007-3-1 11:57 PM:
PlayPlay, Let me know later who has the right answer and I will add points accordingly.
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Thanks [/quote]9^&uC'A_(z
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 1.
1-6 vs 7-12
if 1-6 = 7-12 13 is fake
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if not h2i&L1s!^Q8mi
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Weight the 2 time
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Suppose 1-6> 7-12
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1-3 vs 4-6 2EJt9|YY8Z3{+Z4Q5[ pr
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Then Weight the Thirdq4uH!JRG]^8I
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Suppose 4-6 > 1-36c+~h/Z\-A6F-h#K
Just like the first Step
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4 vs 5 Xq}^N7J
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if 4=5 6 is the fake one
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if 4>5 4 is the fake one
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and so on...................... [color=White]分3組4隻波子秤mtu"W;a
Group A: 1,2,3,4
Group B: 5,6,7,8
Group C: 9,10,11,12
Group D: 138K0Sm,| Nn8\5Q
Round 1^?4E&mV9PO0?
Group A vs Group B
如A and B一樣, 即較輕一粒在Group C or D}[4x0_L
Round 2
再在Group C拆成:
Group Ca: 9,10
Group Cb: 11,12
然後再秤, 如一樣, 即13為較輕一粒.6[n q$@%c8Y N b
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如不同, 即較輕一組有一粒較輕波子在其中, /`T/q)ysy
要再秤, Round 3, 之後便知答案.
e.g. #1 假設10為較輕的一粒
Round 1
1,2,3,4 vs 5,6,7,8 = equalG]^{n2ha@
Round 2,}[Q,o-P2c s Zxl
9,10 vs 11,12 = 9,10 < 11,12b5\1A#PQr
Round 3
9 vs 10 = 9 > 10\&Q3EOB@!ED|
The answer is 10.@)pY*`&a
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e.g. #2 假設7為較輕的一粒
Round 1
1,2,3,4 vs 5,6,7,8 = 1,2,3,4 > 5,6,7,8/Bal QNl
Round 2
5,6 vs 7,8 = 5,6 > 7,8 C%_ `T\ W4G
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Round 3
7 vs 8 = 7 < 8^d(H_5Z"j;I^
The answer is 7.
e.g. #3 假設13為較輕的一粒G e5]*J'o
Round 1"Z1M)xg:Z6N6F#k]
1,2,3,4 vs 5,6,7,8 = equal
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Round 2
9,10 vs 11,12 = equal
No Round 3!c{jL[!h5t
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The answer is 13.[/color]
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唔知我答得正唔正確呢?! :agree:
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[[i] Last edited by hello1997 on 2007-3-2 at 12:39 AM [/i]] [quote]Originally posted by [i]Azuma[/i] at 2007-3-2 12:25 AM:
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1-6 vs 7-12v$c2dmL2{m
if 1-6 = 7-12 13 is fakek1c1b7X I|9Or
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[color=Red]Weight the 2 time
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Suppose 1-6> 7-12
1-3 vs 4-6 [/color]
[color=Blue]Then Weight the Third
3.
Suppose 4-6 > 1-3
Just like the first Step
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4 vs 5 adPMk \/Y&A]!Bo
if 4=5 6 is the fake one
if 4>5 4 is the fake one [/color]q}B{*D ?:Rtd
and so on...................... [/quote]
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[color=Red]問題第二步[/color]
Weight 1: 1-6> 7-12
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Weight 2: 1-3 vs 4-6 ,[color=Red][size=4] if 1-3 = 4-6[/size][/color]%s&f3{8qQ3hJ
你第三步点去搵 7-12 边一粒???T"R;d'[K1v*o2F
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[color=Blue]問題第三步[/color]
Weight 1: 1-6> 7-12$A i6t~"vON
Weight 2: 4-6 > 1-3
你又吾知粒波子輕D定重D ..... 咁点解第三步只磅4-6 吾磅1-3 . 如果個波子係輕D ,咁4-6 就一定一樣咁重 :naughty::naughty: [quote]Originally posted by [i]playbr2[/i] at 2007-3-2 12:03 AM:
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不如你都玩吓喇....叫[u]d叔叔[/u]加分咪得囉:agree::agree:........如果岩既話:lol::dev::D:D [/quote] EK \6RG6i0P[
我邊夠IQ玩,加分我就識(加分唔洗用腦架:dev::P) playplay,
駛唔駛連輕左或重左都要知?
12粒就可以,13粒...... hehe ~ 睇到問題之後引唔住手睇埋人地既答案 ~
但係佢地好似都錯左 :help: [quote]Originally posted by [i]guswan[/i] at 2007-3-2 01:10 AM:O%b Y)c I:D;Fa*YL
playplay,:[;T%r!jy"eSk
駛唔駛連輕左或重左都要知?]y0K;w8l.h*GY
12粒就可以,13粒...... [/quote]
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如果將個答案攞去做實驗.......最後真係會知边粒波子輕左或重左.......不過係文字上,輕左或重左都冇乜所謂(又比左Tips :lol:)
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13粒 一定得 :agree::agree::agree: [quote]Originally posted by [i][color=Red]hello1997[/color][/i] at 2007-3-2 12:35 AM:$]m(Q%T.H} jN.Y
[color=White]分3組4隻波子秤 z\)b|b9z
Grou... [/quote] Slu0FYu%NOU
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;););) [quote]Originally posted by [i]Triangel[/i] at 2007-3-2 01:04 AM:LgW#NL+|/i
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我邊夠IQ玩,加分我就識(加分唔洗用腦架:dev::P) [/quote]
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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...3L!F8h HR)OI
[color=White]先將13粒波子分為5份….姑且叫佢地做A,B,C,D及E…&yWaZaM)M#gX`
A,B,C,D四份都係3粒波子…..最後E果份就係1粒波子….
咁果一粒當然一定晌A,B,C,D,E果五份是但一份到….s:m;B2t"Ulp
先假設果一粒晌E果份到…..咁就簡單….
先磅A同B….大家都會係一樣(第一次磅)…. 3H}r)U5lvV
跟手磅C同D….大家亦都會係一樣….(第二次磅)…#h6ZR$hPO(Wj'b
最後再攞A或B同C或D磅(即A vs C/ A vs D/ B vs C/ B vs D/是但一個都冇所謂)….大家亦都會係一樣….(第三次磅)…}1c!s8g0j\3wW
咁樣就證明左A=B=C=D…咁果粒當然就係E啦…..
世事當然唔會咁簡單…..如果果粒唔同既晌A/B/C/D度又點???
假設佢晌A度…..(~BXA(`
先磅A同B….A對比B會係輕d/重d…(第一次磅)…. 6e&Bb Nj4ka
跟手磅C同D….大家都會係一樣….(第二次磅)…SNQdC&F8B_
係咁既情形下即係果粒唔同重量既一定晌A入面…..最後再攞A入面是但兩粒黎磅…(第三次磅)…如果係一樣既…..咁剩低冇磅果粒當然就係唔同果粒啦…...?EU0D2`8I5H M
如果磅出黎係唔同既….咁就要睇番當初第一次磅既時候….A同B比較時究竟係輕左定重左…..如果係A重d既話…即係話果粒唔同既係重d既….咁晌第三次磅既時候重d果粒就係唔同果粒啦………. 如果當初係A輕d既話…即係話果粒唔同既係輕d既…咁晌第三次磅既時候輕d果粒就係唔同果粒啦……….
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而晌咁既情形下E無論點當然都唔駛磅啦…..(佢一定唔係唔同果粒)…uA?*Xr!DA
如果果粒唔同既晌B/C/D度都係用一樣原理咁抽佢出黎……[/color] 做完,可唔可以scan圖,點隱藏圖?%A7\\d%WO[$m-j f
有排打. [quote]Originally posted by [i]guswan[/i] at 2007-3-2 02:20 AM:.@/|GHx:F$G-r$_EX
做完,可唔可以scan圖,點隱藏圖?(s7{;X%KuB.F\:n
有排打. [/quote]
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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: [quote]Originally posted by [i]feuosma[/i] at 2007-3-2 02:19 AM:`2T yoG
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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????N6AT I
[color=Red]假設佢晌A度…..[/color]y"i{J.`I:Jc
先磅A同B….A對比B會係輕d/重d…(第一次磅)….
跟手磅C同D….大家都會係一樣….(第二次磅)…2@q x6| `$Sa2`dL'GM
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….. DL1S"o"h8L
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……….
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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)…,t+aVmp"RpY&Zb*_
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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]
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!!! :):):)