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Danish Coin

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Danish Coin

by Jason11 » Sun Jul 27, 2008 9:25 pm
In 1980, a Danish ten-øre coin minted in 1747 was sold at auction for $8,000. Eleanor Bixby owns another Danish ten-øre coin minted in 1747. When she puts it on the market next week, it will fetch a price over $18,000.

Which of the following, if true, would most weaken the conclusion drawn above?

(A) Since 1980, the average price for rare coins has increased by over 150 percent.
(B) There are only four coins like the one in question in the entire world.
(C) Since 1980, the consumer price index has risen by over 150 percent.
(D) In 1986, a previously unknown cache of one hundred coins just like the one in question was found.
(E) Thirty prominent, wealthy coin collectors are expected to bid for Bixby’s coin.
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by Jason11 » Sun Jul 27, 2008 9:35 pm
This is another absurd question in 1000CR.

First, there is no conlusion in the question. There are only 2 premises. Second, it can’t weaken the unknown conlusion after “6″ years in the choice of D, which is an OA. I think the question is incomplete.
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by raunekk » Sun Jul 27, 2008 10:50 pm
IMO:D

says:

In 1986, a previously unknown cache of one hundred coins just like the one in question was found

So if similar kinda coins were found in 1986, there are chances that wen the "ten-øre" coin is sold "next week" it wont fetch a price equal or above $18,000..

But i agree with you ,its not a strong answer to weaken...but its d strongest of the lot...

Also,imo.."it will fetch a price over $18,000." is d conclusion..
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by kiranlegend » Mon Jul 28, 2008 12:43 pm
yeah how can the bidders know what happens after 6 years?? :lol: here we have to assume that either bidders are astrologers or bidders seeked the help of astrologers..

guys, i have a questions here. in the weakening question type, can the answer choice that purportedly weakens assume any thing like what has happened in this case?
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by kiranlegend » Tue Jul 29, 2008 9:44 pm
any thoughts?
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by iwill » Sat Aug 02, 2008 10:33 pm
In 1980 it sold for $ 8000.
100 similar coins found out in 1986.

hence, It is less likely to fetch $ 18,000, in next week's auction.
Making any sense ??
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Re: Danish Coin

by Stuart@KaplanGMAT » Sat Aug 02, 2008 10:54 pm
Jason11 wrote:In 1980, a Danish ten-øre coin minted in 1747 was sold at auction for $8,000. Eleanor Bixby owns another Danish ten-øre coin minted in 1747. When she puts it on the market next week, it will fetch a price over $18,000.

Which of the following, if true, would most weaken the conclusion drawn above?

(A) Since 1980, the average price for rare coins has increased by over 150 percent.
(B) There are only four coins like the one in question in the entire world.
(C) Since 1980, the consumer price index has risen by over 150 percent.
(D) In 1986, a previously unknown cache of one hundred coins just like the one in question was found.
(E) Thirty prominent, wealthy coin collectors are expected to bid for Bixby’s coin.
When you see a prediction, it's usually the conclusion of the argument. The evidence is why the author thinks the prediction is going to come true.

Here, "When she puts it on the market next week, it will fetch a price over $18,000" is definitely the author's conclusion.

Predictions appear frequently in weakening questions. The most common way to weaken a prediction is to find an unforseen circumstance that jeopardizes the prediction's accuracy. In other words, something new that the author didn't think would happen.

This question perfectly fits the mold. Answer (D) introduces a surprise occurence (they found lots of similar coins!) that makes us strongly doubt that the coin to be sold with fetch a high price.

As for the time frame, you should read each question on test day as though it were written about THAT day, unless it specifies another date. So, when you read "When she puts it on the market next week", assume that it's a week after you answer the question that it's going up for sale. Accordingly, the 1986 treasure trove of coins is directly relevant.
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by NSNguyen » Tue Aug 05, 2008 8:29 am
, it will fetch a price over $18,000.
Is it the conclusion,
D is the best
i think we should fix us in to the reasonable of the real.
simply, D is best in this situation,
:D
Please share your idea and your reasoning :D
https://bmnmed.com/home/
https://nguyensinguyen.vietnam21.org
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by dj_vinayak » Sun Jul 11, 2010 6:02 am
Ok

why not A

150 % of 8000 is 20000.

so if author claims to get 19,000 but we know that we will def get over 20,000 $

wot say guys should we do the math here or what?
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by Stuart@KaplanGMAT » Sun Jul 11, 2010 8:27 am
dj_vinayak wrote:Ok

why not A

150 % of 8000 is 20000.

so if author claims to get 19,000 but we know that we will def get over 20,000 $

wot say guys should we do the math here or what?
By your own reasoning, (A) is a strengthener, not a weakener.

The author says "over $18000". If general trends show that it will likely fetch $20000, then that certainly satisfies the author's prediction.

As an aside, we don't know that the coin will definitely sell for $20000 - we certainly can't go from "average increase" to "every coin increases in value by that exact amount".
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by dj_vinayak » Sun Jul 11, 2010 9:41 am
Stuart Kovinsky wrote:
dj_vinayak wrote:Ok

why not A

150 % of 8000 is 20000.

so if author claims to get 19,000 but we know that we will def get over 20,000 $

wot say guys should we do the math here or what?
By your own reasoning, (A) is a strengthener, not a weakener.

The author says "over $18000". If general trends show that it will likely fetch $20000, then that certainly satisfies the author's prediction.

As an aside, we don't know that the coin will definitely sell for $20000 - we certainly can't go from "average increase" to "every coin increases in value by that exact amount".
Got it.Thanks :-)
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by sk818020 » Sun Jul 11, 2010 8:47 pm
Jason11 wrote:This is another absurd question in 1000CR.

First, there is no conlusion in the question. There are only 2 premises. Second, it can�t weaken the unknown conlusion after �6"³ years in the choice of D, which is an OA. I think the question is incomplete.
I have to admit, this made me laugh. I've had this exact same response when someone posts 1000CR questions.

Thanks, Jason11.

Jared
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by pradeepkaushal9518 » Sun Jul 11, 2010 8:57 pm
this i think simplest question i have ever crossed.

source is 100CR

JASON IF U REALLY WANT TO IMPROVE YR CR DO SOME GOOD SOURCE QUESTIONS LIKE OG-12,KAPLAN, PRINCESTONE ETC.
THEY HAVE A STANDARD OF QUESTIONS
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