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# A newly discovered painting on wooden panel by Michelangelo

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A newly discovered painting on wooden panel by Michelangelo [#permalink]

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06 Aug 2006, 10:35
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A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?

A) No stocks of the abandoned pigment existed after 1509.

B) Michelangelo did not work on the painting over the course of several years.

C) The coin depicted in the painting was known to general public in 1507.

D) The wooden panel on which the painting was executed cannot be tested accurately for age.

E) Michelangelo's painting style did not change between 1507 and 1509.
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Last edited by bb on 24 Mar 2016, 08:54, edited 4 times in total.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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28 Oct 2007, 22:29
gmat_buf wrote:
Here is a question that I got and I don't agree with the OA. Thought I'll post it in the forum and see if I'm totally mistaken.

A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?

A) No stocks of the abandoned pigment existed after 1509.
B) Michelangelo did not work on the painting over the course of several years.
C) The coin depicted in the painting was known to general public in 1507.
D) The wooden panel on which the painting was executed cannot be tested accurately for age.
E) Michelangelo's painting style did not change between 1507 and 1509.

My guess is B.

A: this is irrelevant. the passage states that Mich. abondoned the pigment for a cheaper one. So even if stocks did exist he still wouldn't have used them. This doesn't bolster the conclusion.
C: Irrelevant.
D: Way out of scope.
E: out of scope

B: if he did his work over a course of a few years then maybe he added the coin later and used the pigment ealier. This is neccessary for the argument to be legit.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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29 Oct 2007, 18:43
GMATBLACKBELT wrote:
gmat_buf wrote:
Here is a question that I got and I don't agree with the OA. Thought I'll post it in the forum and see if I'm totally mistaken.

A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?

A) No stocks of the abandoned pigment existed after 1509.
B) Michelangelo did not work on the painting over the course of several years.
C) The coin depicted in the painting was known to general public in 1507.
D) The wooden panel on which the painting was executed cannot be tested accurately for age.
E) Michelangelo's painting style did not change between 1507 and 1509.

My guess is B.

A: this is irrelevant. the passage states that Mich. abondoned the pigment for a cheaper one. So even if stocks did exist he still wouldn't have used them. This doesn't bolster the conclusion.
C: Irrelevant.
D: Way out of scope.
E: out of scope

B: if he did his work over a course of a few years then maybe he added the coin later and used the pigment ealier. This is neccessary for the argument to be legit.

GMATBLACKBELT Good explanation!!!

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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31 Oct 2007, 08:27
Answer B. Stem doesn't say that the paint wasn't available after 1509 but it mentioned that michaelangelo abondoned it after that time. But if he had initiated the painting prior to that time, he might have carried on with it to preserve the quality.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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05 Nov 2007, 11:37
BschoolDream you hit the bulls-eye...guess that's what I was missing in the explanation.

Thanks everyone...was nice to see all the different reactions and thought processes.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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15 Jan 2008, 13:21
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A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?

A)No stocks of the abandoned pigment existed after 1509.
B)Michelangelo did not work on the painting over the course of several years.
C)The coin depicted in the painting was known to general public in 1507.
D)The wooden panel on which the painting was executed cannot be tested accurately for age.
E)Michelangelo's painting style did not change between 1507 and 1509

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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15 Jan 2008, 16:35
Conclusion: A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509.

A)No stocks of the abandoned pigment existed after 1509 [ Hold it] .
B)Michelangelo did not work on the painting over the course of several years [ Irrelevant to the argument whether Michelangelo worked for several years or not - eliminate it] .
C)The coin depicted in the painting was known to general public in 1507[Could also be a possibility - Hold It].
D)The wooden panel on which the painting was executed cannot be tested accurately for age [ Irrelevant to the argument – eliminate it].
E)Michelangelo's painting style did not change between 1507 and 1509 [ The argument is about the age of the painting – eliminate it]

Struck between A and C – Apply "Negation" rules to find out correct assumption:
Negate A – “stocks of the abandoned pigment existed after 1509” This invalids the conclusion.
Negate C - "The coin depicted in the painting was not known to general public in 1507."
This will not invalid the conclusion. Eliminate it

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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15 Jan 2008, 22:06
AVakil wrote:
Crap. I went with B.

Where did I go wrong?

Explanations?

I don't think your wrong at all. Lets take the opposite, what if he DID work on it for several years. What if he added the coin in 1507, but worked on the painting well beforehand and did not include the coin. He certainly could have made the painting b/f then.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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16 Jan 2008, 09:11
B as well..... I tried to figure out the assumption before reading the question. I came to the conclusion without seeing the answer choices that he had to paint it in one shot and it was not a continous painting.

B fit that nicely.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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16 Jan 2008, 10:16
JCLEONES wrote:
A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?

A)No stocks of the abandoned pigment existed after 1509.
B)Michelangelo did not work on the painting over the course of several years.
C)The coin depicted in the painting was known to general public in 1507.
D)The wooden panel on which the painting was executed cannot be tested accurately for age.
E)Michelangelo's painting style did not change between 1507 and 1509

A. even if such stocks existed, nobody tells us that Michelangelo would have used this pigment
B. I think it is irrelvant. I don't see any relationship.
C. If the coin was minted oly since 1507, nobody tells us that it was known since this year. minted is different from known. since C tells us that the coin was, in fact, known to public in 1507, therefore the argument makes senseD.
D. it seems the conclusion, not the assumption
E. what do we have to do with the style of Michelangelo?

Is OA C?

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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17 Jan 2008, 10:52
The OA is B

marcodonzelli wrote:
JCLEONES wrote:
A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?

A)No stocks of the abandoned pigment existed after 1509.
B)Michelangelo did not work on the painting over the course of several years.
C)The coin depicted in the painting was known to general public in 1507.
D)The wooden panel on which the painting was executed cannot be tested accurately for age.
E)Michelangelo's painting style did not change between 1507 and 1509

A. even if such stocks existed, nobody tells us that Michelangelo would have used this pigment
B. I think it is irrelvant. I don't see any relationship.
C. If the coin was minted oly since 1507, nobody tells us that it was known since this year. minted is different from known. since C tells us that the coin was, in fact, known to public in 1507, therefore the argument makes senseD.
D. it seems the conclusion, not the assumption
E. what do we have to do with the style of Michelangelo?

Is OA C?

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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17 Jan 2008, 11:41
I go with B for the simple fact that if you introduce the exact opposite of the assumption as a fact into any argument, the argument's conclusion needs to fall apart.

so lets try the exact opposite to our choices.

A) If there was lots of pigment left of the type that MA abandoned, this still doesn't destroy the conclusion that he COMPLETED the painting between 1507 and 1509. He could have still gone out and bought the cheaper pigment to finish it later.
B) If he painted the painting over many years, he could have used the pigment before 1509 and put the coin in after 1507. So this destroys the conclusion
C) The coin in the painting was not known to the general public in 1507. MA wasn't the general public was he, so he could have still known about the coin. For goodness sake, he painted at the vatican for the pope himself. . How can he be classed as "the general public"
D) The wooden panel can be tested for age accurately. This is out of scope with the conclusion, since the conclusion is drawn from unrelated facts to the wooden panel's age. Also even if the wooden panel was tested for age, it could have been made in 1800 as a replacement. Or worse still it could have been made in 1502 or something. It doesn't tell it when the PAINTING WAS Completed
E) MA's painting style changed between 1507 to 1509. This doesn't mean that the painting was completed between these years at all. A painting can have multiple painting style and we have no idea if this painting is style A or style B or a combination of them. So the conclusion isn't destroyed since this is out of scope.

so negating B for the above reasons destroys the conclusion and is our answer

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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17 Jan 2008, 11:48
I also got B. The conclusion was that the painting was completed before 1509 because the artist abandonded a pigment in 1509.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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18 Jan 2008, 10:40
I go with B for the simple fact that if you introduce the exact opposite of the assumption as a fact into any argument, the argument's conclusion needs to fall apart.

so lets try the exact opposite to our choices.

A) If there was lots of pigment left of the type that MA abandoned, this still doesn't destroy the conclusion that he COMPLETED the painting between 1507 and 1509. He could have still gone out and bought the cheaper pigment to finish it later.
B) If he painted the painting over many years, he could have used the pigment before 1509 and put the coin in after 1507. So this destroys the conclusion
C) The coin in the painting was not known to the general public in 1507. MA wasn't the general public was he, so he could have still known about the coin. For goodness sake, he painted at the vatican for the pope himself. . How can he be classed as "the general public"
D) The wooden panel can be tested for age accurately. This is out of scope with the conclusion, since the conclusion is drawn from unrelated facts to the wooden panel's age. Also even if the wooden panel was tested for age, it could have been made in 1800 as a replacement. Or worse still it could have been made in 1502 or something. It doesn't tell it when the PAINTING WAS Completed
E) MA's painting style changed between 1507 to 1509. This doesn't mean that the painting was completed between these years at all. A painting can have multiple painting style and we have no idea if this painting is style A or style B or a combination of them. So the conclusion isn't destroyed since this is out of scope.

so negating B for the above reasons destroys the conclusion and is our answer

Thank you for explaining the negation method, I would like to try this method. I have not heard about it or tried it yet.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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31 May 2008, 19:46
A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?
A No stocks of the abandoned pigment existed after 1509.

B Michelangelo did not work on the painting over the course of several years.

C The coin depicted in the painting was known to general public in 1507.

D The wooden panel on which the painting was executed cannot be tested accurately for age.

E Michelangelo's painting style did not change between 1507 and 1509.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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31 May 2008, 19:50
B.

He did not work on the painting over the course of several years. Otherwise he could have used that pigment, and later abandoned it for something else.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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31 May 2008, 20:29
Should be 'B'

Negation technique is useful in solving 'assumption' questions.

The close answers are B and E.

Conclusion falls apart if the painter has worked on painting over several years. Painter can use the pigment after 1509. This damages the conclusion. hence B

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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31 May 2008, 21:16
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B - that the painting contains a coin not minted until 1507 does not mean the painting was not started before 1507. It only means the coin was likely not painted until 1507 or later. Also, the stimulus states Michelangelo chose to use the cheaper alternative when in became available in 1509 not that the old pigment was not available anywhere, so he could have used the older pigment and then later the new, cheap alternative. The stimulus assumes the paiting was worked on between 1507-09 and is assuming so assumes he did not work on it over the course of several years starting some time before 1507 and completing some years after 1509.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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31 May 2008, 21:23
Quote:
A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?
A No stocks of the abandoned pigment existed after 1509.
B Michelangelo did not work on the painting over the course of several years.
C The coin depicted in the painting was known to general public in 1507.
D The wooden panel on which the painting was executed cannot be tested accurately for age.
E Michelangelo's painting style did not change between 1507 and 1509.

CR in my words : M created wood paint between 1507 and 1509. Reason : No coin before 1507 and no paint after 1509.
Assumption must (MUST) be related to above sentence.
A-Premise is restated - Wrong
B-only completion is in picture - wrong. Also this answer can come to strengthen or weaken. But not as an assumption. Even if it spawned for years. The artist would have used cheaper alternative.
C-Correct. Otherwise, the premise falls. He could have got the coin earlier.
D-No relevance- Wrong
E-Unwanted info - Wrong
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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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01 Jun 2008, 09:56
bsd_lover wrote:
A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509. It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year. It cannot have been painted after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in that year.

Which of the following is an assumption on which the argument depends?
A No stocks of the abandoned pigment existed after 1509.

B Michelangelo did not work on the painting over the course of several years.

C The coin depicted in the painting was known to general public in 1507.

D The wooden panel on which the painting was executed cannot be tested accurately for age.

E Michelangelo's painting style did not change between 1507 and 1509.

I got B as well. the key here is identifying the conlusion and finding an answer that directly attacks the conclusion. In effect you turn it from an assumption question into a Strengthen/Weaken question.

i.e.
Michaelangelo did work on the painting over the course of several years. this in effect undermines the Author's argument that "A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509" therefore B is the answer.

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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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02 Jun 2008, 14:53
As requested :

The conclusion of the argument is that Michelangelo must have completed the painting between 1507 and 1509. The basis for that claim is that the painting depicts a coin that did not exist before 1507 and that it contains a pigment that Michelangelo ceased using in 1509. We are asked to find an assumption that completes the logic of this argument.

Choice A is incorrect. We do not need to assume that no stocks of the pigment existed after 1509. The argument is concerned only with the year in which Michelangelo stopped using the pigment.

Choice B is correct. In order to conclude that the painting must have been completed before 1509 on the basis of the pigment, we must assume that he did not begin the painting before 1509 using the old pigment and complete the painting after 1509 with the new pigment.

Choice C is incorrect. The fact that the general public knew of the coin in 1507 is irrelevant to the conclusion.

Choice D is incorrect. The fact that the panel cannot be tested for age does not relate to either the coin or the pigment, the two bases for the conclusion.

Choice E is incorrect. Whether Michelangelo's painting style changed during this period does not relate to either the coin or the pigment.

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Re: A newly discovered painting on wooden panel by Michelangelo   [#permalink] 02 Jun 2008, 14:53

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