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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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16 Jun 2016, 20:37
CONCLUSION : Michelangelo must have been completed the painting after 1507 but before 1509
OPTION B : Michelangelo did not work on the painting over the course of several years.
NEGATE B : Michelangelo worked on the painting over the course of several years.Look at the conclusion ,in which author clearly states that painting was strictly completed between 1507 and 1509.However ,statement B on negation says that Michelangelo worked on the painting over the course of several years (many years) .
Let's look at the premises more closely to get a clear picture:
1) It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year.
But it can be possible that coin was minted after 1509 .
2nd premise:
2) 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.
But here as well Michelangelo might have been using pigments before 1507.
the negated statement in light of above interpretation of premises directly refutes author's assertion that painting was started and finished between 1507 and 1509 respectively.

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

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28 Sep 2016, 17:44
I got B, which makes sense. I am just curious about another assumption I had in mind, which isnt one of the answer choice, but given the initial argument, I want to understand if the assumption I formulated is correct.

Original statement: ...o must have been completed after 1507 but before 1509.
Assumption: That the coin that was minted in 1507 could not have been used during 1507 to complete the painting.
The situation I am proposing is: The coin of 1507 would have been available in 1507. Can the painting not be completed on December 31st, 1507 with that coin? In this case, the painting was not complete "after" 1507 but during.

What do you guys think? Thanks in advance

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

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13 Oct 2016, 05:38
A) No stocks of the abandoned pigment existed after 1509. --> Irrelevent - the question is concerned whether MA used or not. Not that the pigment existed or not

B) Michelangelo did not work on the painting over the course of several years. --> thus it can be within the relevant period

C) The coin depicted in the painting was known to general public in 1507. --> It is possible that MA designed the coin which was later accepted for printing in 1507

D) The wooden panel on which the painting was executed cannot be tested accurately for age. --> wooden panel can be older... it is the painting the question is concened with.

E) Michelangelo's painting style did not change between 1507 and 1509. --> Irrelevent. Style is not in question

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

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13 Oct 2016, 09:10
Hi,

I understand the thought process here. But I have a small doubt. How can we say that negation in choice B has destroyed the conclusion - as even if it started in 07' and ended in 09', these are still 3 years( or several years according to choice).

Thanks

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

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16 Oct 2016, 03:52
shoonya 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.

Can any kind-hearted soul explain to me why option C is wrong. According to me if the coin is not known to the people who were during the period after 1507 then it weakens the statement, I tried to negate the statement and I found it was weakening the statement. But the best contenders were Option B and Option C, of the two I shall choose option C

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

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17 Oct 2016, 09:42
Karthic26 wrote:
Can any kind-hearted soul explain to me why option C is wrong. According to me if the coin is not known to the people who were during the period after 1507 then it weakens the statement, I tried to negate the statement and I found it was weakening the statement. But the best contenders were Option B and Option C, of the two I shall choose option C

Negating option C does not break down the argument. Suppose the general public did NOT know about the coin - this does not imply that the painting was done BEFORE 1507. At most, it may imply that the painting was done AFTER 1507, if one considers that Michael Angelo is one among the general public. So negating C at most supports the argument, not opposes - hence cannot be an assumption.

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

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19 Nov 2016, 15:00
A) No stocks of the abandoned pigment existed after 1509. --> doesn't matter because prompt stated he abandoned using older pigment once cheaper version was introduced. Thus, eliminate.

B) Michelangelo did not work on the painting over the course of several years. --> Correct, by POE. Also, can be supported if you're still not convinced by the negation test (i.e. he completed work in course of several years).

C) The coin depicted in the painting was known to general public in 1507. --> eliminate; whether or not coin is known to the general public doesn't change that it was minted in a specific year.

D) The wooden panel on which the painting was executed cannot be tested accurately for age. -->great, the wood can be tested. This doesn't solve the issue of when the painting was completed. The wood could be a lot older than the painting itself and therefore provide a misleading conclusion. Thus, eliminate.

E) Michelangelo's painting style did not change between 1507 and 1509. --> his painting style has no effect on when the painting was completed. Thus, eliminate.

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

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01 Dec 2016, 03:01
A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509.
Premise: It cannot have been painted earlier than 1507 because one of its central figures carries a coin that was not minted until that year.
Premise: 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.
Conclusion: A newly discovered painting on wooden panel by Michelangelo must have been completed after 1507 but before 1509.

The painting must have been COMPLETED after 1507 but before 1509. Only ‘completed’ and not started. It might be possible that Michelangelo was working on this painting from before 1507 and after 1509 bringing in changes with time as mentioned in the two premises.

We have to look for a choice that eliminates any weakener.

Let’s look at the choices:

A) No stocks of the abandoned pigment existed after 1509.
Even if stocks existed after 1509, Michelangelo did not use it as mentioned in the passage.

B) Michelangelo did not work on the painting over the course of several years. This choice matches our pre-thinking. Thus is correct.

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

D) The wooden panel on which the painting was executed cannot be tested accurately for age. IRRELEVANT because the main points that supports the conclusion are coin and pigment

E) Michelangelo's painting style did not change between 1507 and 1509. OUT OF SCOPE
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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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11 Apr 2017, 21:11
The answer is B, but it's difficult to see without trying to predict what the answer should do before going to the answer choices. For many assumption questions, the key is to think critically - think about what would weaken the conclusion. Attacking an argument is a good way to expose the underlying assumptions that the author makes, but does not state.

There are actually two sets of premises and conclusions in this argument:
Premise: the painting contains a coin that was not available before 1507.
Conclusion: the painting was not painted before 1507.

AND

Premise: Painting contained a pigment that Michelangelo abandoned in 1509.
Conclusion: The painting was finished by 1509

the second one is easier to attack: the fact that the painting contained a pigment (not painted entirely in the pigment - just contained the pigment) does not by itself say that Michelangelo could not continue working on painting beyond 1509 using different kinds of pigments.

The first is attacked in the same manner: the fact that part of the painting (in this case, a coin) has a "not before 1507" date does not meant that the painting as a whole was painted after 1507: It is possible that other parts of the painting were painted before 1507, with the coin added AFTER 1507 at a later stage.

These are weakening hypotheses, not found in the text, but they expose the assumption - the author is assuming that "expiry dates" on parts of the painting represent the entire painting as a whole - that if he started on the coin in 1507, he started the entire painting at 1507, and if he finished with the pigment in 1509, he must have finished the entire painting before that time.

B works against that assumption: If Michelangelo paused in his work on the painting, that would explain why the painting could be painted outside of the range, with only the relevant parts painted within the range. Therefore, in reaching his conclusion that the parts represent the whole, the author must assume that the painting was painted more or less within a short period of time - a year or two. B is a necessary assumption because it eliminates a possible counter explanation that would weaken the conclusion.
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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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18 Sep 2017, 12:30
VeritasPrepKarishma wrote:
2flY wrote:
gmattokyo wrote:
I'll go with A
No stocks of the abandoned pigment existed after 1509.
- Michelangelo abandoned the pigment used to make the paint (not the paint) because cheaper version was available. There is no mention that he stopped using the existing stock. If he has spent a lot making a stock of paint, he'll use that

These were my thoughts. However, this seems to be wrong...

Yes, the reason this option is option (A) is that it is tempting to jump to it right away. But it is incorrect.

The problem here is that the option says 'No stocks existed after 1509'.
We don't need to assume that. Recall that the argument says that Michelangelo stopped using the pigment, not that the pigment was not manufactured after 1509. It is immaterial whether stock of the pigment existed after 1509. We know that Michelangelo abandoned the use of the pigment after 1509.

Look at the argument:
- The painting must have been completed after 1507 but before 1509.
- Not earlier than 1507 because one of its central figures carries a coin that was not minted until that year.
- Not after 1509 because it contains a pigment that Michelangelo is known to have abandoned when a cheaper alternative became available in 1509.

The argument clearly tells us that Michelangelo abandoned the use of the pigment in 1509. Whether he had stocks of it or not, he abandoned its use in 1509. The argument seems pretty good fit except for one thing - it says that the painting must have been COMPLETED within 1507 to 1509. That's the folly of the argument. Based on the premises, we can say for sure that he painted it during this time frame. We cannot say whether he completed it during this time.
He could have painted it over many years which would include the time frame of 1507 - 1509. When we say that he completed it before 1509, we are assuming that he did the painting in a matter of a few weeks or months, not over many years.

Hi Karishma,

Darshna here!

I have a doubt related to option B: I eliminated it on the grounds of that this fact is already mentioned in the argument. It clearly mentions that the painting was made after 1507 and before 1509 that implies it was not made over many years.

Thanks,
Darshna

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

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02 Dec 2017, 21:37
Really good question.

A is the trick.

But "abandon" is the clue for eliminating it.

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

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06 Dec 2017, 02:10
How come the answer would be B when B is just restating what the question has stated meaning the author already said that the painting must have been completed before 1509 and assumption B seems to be just rephrasing that, isn't it?

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

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06 Dec 2017, 02:43
My answer is B. The conclusion is that painting must have been completed between certain time frame. How can we shatter the conclusion? It wasn't finished in one go. It may have started in 1507 but may have ended in 1530. Hence, this is the assumption! It was completed in a single go.
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Re: A newly discovered painting on wooden panel by Michelangelo [#permalink]

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06 Dec 2017, 10:26
I did not understand the assumption stated over here.

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Re: A newly discovered painting on wooden panel by Michelangelo   [#permalink] 06 Dec 2017, 10:26

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