The quality of unrefined olive oil is not actually defined : GMAT Critical Reasoning (CR)
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# The quality of unrefined olive oil is not actually defined

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The quality of unrefined olive oil is not actually defined [#permalink]

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25 Sep 2007, 03:53
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The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality. The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

If the statements above are all true, which of the following conclusions is best supported by them?

A. When an olive oil is refined, the concentration of oleic acid in the oil is reduced.
B. The quality of an unrefined olive oil can be determined only by accurately measuring its acidity.
C. If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality.
D. Free oleic acid is the only acid that unrefined olive oil contains.
E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.
[Reveal] Spoiler: OA
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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25 Sep 2007, 07:38
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Answer B and D seems extreme. Answer E seems out side of the scope. I am between A and C. I think I am going to chose C because the statement mentioned about unrefined oil not refined as mentioned in A.

So, C for me.
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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25 Sep 2007, 07:48
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12345678 wrote:

The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality.

1) - quality of olive oil inversely proportional to free oleic acid

The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

2) - acidity directly proportional to proportion of free oleic acid

If the statements above are all true, which of the following conclusions is best supported by them?

From 1 and 2 therefore, Higher oleic acid ---> lower quality. So, if intermediate oleic acid --> intermediate quality.

Concur with C

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25 Sep 2007, 08:16
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dwivedys wrote:
12345678 wrote:

The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality.

1) - quality of olive oil inversely proportional to free oleic acid

The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

2) - acidity directly proportional to proportion of free oleic acid

If the statements above are all true, which of the following conclusions is best supported by them?

From 1 and 2 therefore, Higher oleic acid ---> lower quality. So, if intermediate oleic acid --> intermediate quality.

Concur with C

hey dwivedys...u always come with explainations.....cheers to u
I will simply go with "C"
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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25 Sep 2007, 09:08
12345678 wrote:
The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality. The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

If the statements above are all true, which of the following conclusions is best supported by them?
A. When an olive oil is refined, the concentration of oleic acid in the oil is reduced.
B. The quality of an unrefined olive oil can be determined only by accurately
measuring its acidity.
C. If an unrefined olive oil is intermediate in acidity between two other unrefined
olive oils, it will also be intermediate between them in quality.
D. Free oleic acid is the only acid that unrefined olive oil contains.
E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.

I say C for this.

A: We are talking about unrefined olive oil.
B: argument says that other methods are used.
D: Maybe, but we can't determine this from the passage.
E: Goes against passage.
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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25 Sep 2007, 21:01
12345678 wrote:
The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality. The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

If the statements above are all true, which of the following conclusions is best supported by them?
A. When an olive oil is refined, the concentration of oleic acid in the oil is reduced.
B. The quality of an unrefined olive oil can be determined only by accurately
measuring its acidity.
C. If an unrefined olive oil is intermediate in acidity between two other unrefined
olive oils, it will also be intermediate between them in quality.
D. Free oleic acid is the only acid that unrefined olive oil contains.
E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.

C for me too.
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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26 Sep 2007, 07:21
dwivedys wrote:
12345678 wrote:

The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality.

1) - quality of olive oil inversely proportional to free oleic acid

The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

2) - acidity directly proportional to proportion of free oleic acid

If the statements above are all true, which of the following conclusions is best supported by them?

From 1 and 2 therefore, Higher oleic acid ---> lower quality. So, if intermediate oleic acid --> intermediate quality.

Concur with C

thanks OA==>C
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26 Sep 2007, 07:24

C is my pick.
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26 Nov 2013, 20:16
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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28 Sep 2015, 17:56
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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24 May 2016, 17:56
My problem with this is that C directly contradicts the first statement.

"the quality of unrefined olive oil is not actually defined in terms of acidity..."
"If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality."
Which translates to intermediate in quality = intermediate in acidity
so quality = acidity
which contradicts the first part of stem.

Can someone help me understand this? Was this an official GMAT question?
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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25 May 2016, 05:18
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r0ckst4r wrote:
My problem with this is that C directly contradicts the first statement.

"the quality of unrefined olive oil is not actually defined in terms of acidity..."
"If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality."
Which translates to intermediate in quality = intermediate in acidity
so quality = acidity
which contradicts the first part of stem.

Can someone help me understand this? Was this an official GMAT question?

The acidity may INDICATE the quality, but it is not used to DEFINE the quality.

For example: Mass number of an atom is DEFINED as the total number of protons and neutrons in an atom. Higher the mass no., higher is the mass of the atom. Nonetheless mass is not used to DEFINE mass no. of an atom,but just an indication of the mass no.

Here,
mass no. is equivalent to quality
mass is equivalent to acidity
no. of protons and neutrons is equivalent to some parameter that has not been specified in the passage -a parameter used to DEFINE the quality.
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The quality of unrefined olive oil is not actually defined [#permalink]

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28 Jul 2016, 05:24
The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality. The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

If the statements above are all true, which of the following conclusions is best supported by them?

Premise 1) Olive oil's quality is not related to acidity
Premise 2) If amount of free Oelic acid is less in oil then quality is good
The amount of free Oelic acid is inversely proportional to Oil's quality

Premise 3) Amount of free Oelic acid is an accurate measure of oils ACIDITY

Mathematically speaking
Amount of Oelic acid Acidity {based on Premise 3}

Amount of Oelic acid $$\frac{1}{Quality}$$ {based on Premise 2}

therefore :- Amount of Oelic acid $$\frac{Acidity}{Quality}$$

Pre-thinking :-
The more free Oelic acid, the more acidic is the oil and poor is the quality.
The less free Oelic acid the less acidic is oil and better is the quality.

Extending the same logic a little bit more
If some oil has medium oelic acid content, the acidity will be $$moderate$$ and the quality will also be $$medium$$.

What options matches our Pre-thinking.
C. If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality.

A. When an olive oil is refined, the concentration of oleic acid in the oil is reduced.
B. The quality of an unrefined olive oil can be determined only by accurately measuring its acidity.
C. If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality.
D. Free oleic acid is the only acid that unrefined olive oil contains.
E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.[

12345678 wrote:
The quality of unrefined olive oil is not actually defined in terms of acidity, yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality. The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.

If the statements above are all true, which of the following conclusions is best supported by them?

A. When an olive oil is refined, the concentration of oleic acid in the oil is reduced.
B. The quality of an unrefined olive oil can be determined only by accurately measuring its acidity.
C. If an unrefined olive oil is intermediate in acidity between two other unrefined olive oils, it will also be intermediate between them in quality.
D. Free oleic acid is the only acid that unrefined olive oil contains.
E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.

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Last edited by LogicGuru1 on 28 Jul 2016, 05:46, edited 5 times in total.
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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28 Jul 2016, 05:29
boiled it down to C and E

rest are irrelevant or out of scope

E says that quality is judged by acidity , which is not the case by the argument

C clearly wins sshowing relationship between acidity and quality ,which the argument actually explains.
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05 Oct 2016, 11:36
Hi Sayantac,

I was able to get down to C & E.
I got highly distracted by the jump unrefined olive oil to olive oil in the last sentence.( do you think we should overlook this shift?)

The quality of unrefined olive oil is not actually defined in terms of acidity,
yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality.

Quality of unrefined olive is not a function of acidity : in mathematical terms
but - Lesser the oleic acid - higher the quality : some relation ship is there. (1)

The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.
Oleic acid is proportional to acidity :
higher the oleic acid - higher the acidity or
lesser the oleic acid - lower the acidity. ( 2)

so combining 1 & 2 we can say that

lesser the oleic acid - lower the acidity - higher the quality

So why can't we say that quality is affected by acidity or acidity is a measure of quality : this is what E says.

E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.

Thanks in Anticipation
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05 Oct 2016, 20:53
Hello
To know about "The quality of unrefined olive oil is not actually defined" read my book here Dissertation Help .
Regards
angellily
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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07 Oct 2016, 07:58
divyaverma wrote:
Hi Sayantac,

I was able to get down to C & E.
I got highly distracted by the jump unrefined olive oil to olive oil in the last sentence.( do you think we should overlook this shift?)

The quality of unrefined olive oil is not actually defined in terms of acidity,
yet extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality.

Quality of unrefined olive is not a function of acidity : in mathematical terms
but - Lesser the oleic acid - higher the quality : some relation ship is there. (1)

The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil’s acidity.
Oleic acid is proportional to acidity :
higher the oleic acid - higher the acidity or
lesser the oleic acid - lower the acidity. ( 2)

so combining 1 & 2 we can say that

lesser the oleic acid - lower the acidity - higher the quality

So why can't we say that quality is affected by acidity or acidity is a measure of quality : this is what E says.

E. People who judge the quality of unrefined olive oils actually judge those oils by their acidity, which the judges can taste.

Thanks in Anticipation

Of course you CAN say that acidity can be an indication of the quality - however you CANNOT say that the judges use that parameter to measure quality because nothing is said about the judges in the passage. So there is no way for you to conclude what method the judges adopt to measure the quality, whether they taste acidity or something else ( say, texture).

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07 Oct 2016, 07:59
angellily wrote:
Hello
To know about "The quality of unrefined olive oil is not actually defined" read my book here Dissertation Help .
Regards
angellily

Please refrain from non-GMAT discussions in these forums.
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07 Oct 2016, 10:30
sayantanc2k : Thanks ! So the extra fluff here is making the choice incorrect. Though the gist of the sentence does relate to the derived relationship. But the circumstance via which this relationship is presented is no where mentioned in the passage.

Can we say that this choice is inconsistent - or half right or half wrong? This is definitely not OFS as many has suggested.
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Re: The quality of unrefined olive oil is not actually defined [#permalink]

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08 Oct 2016, 06:12
divyaverma wrote:
sayantanc2k : Thanks ! So the extra fluff here is making the choice incorrect. Though the gist of the sentence does relate to the derived relationship. But the circumstance via which this relationship is presented is no where mentioned in the passage.

Can we say that this choice is inconsistent - or half right or half wrong? This is definitely not OFS as many has suggested.

They are not wrong. Choice E is wrong and out of scope since the argument is not about how the testing is done by experts.
Re: The quality of unrefined olive oil is not actually defined   [#permalink] 08 Oct 2016, 06:12

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