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jabhatta2
Can one infer # 2

Quote:
Lower acidity , quality is better ?

Yes, jabhatta2, this sentence:
extensive tests have shown that the less free oleic acid an unrefined olive oil contains per liter, the higher its quality
, in combination with your previous inference, implies that lower acidity leads to higher quality.

So overall, we know that lower proportion of free oleic acid that an olive oil contains == the oil’s acidity and we know that lower proportion of free oleic acid that an olive oil contains == higher quality.
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thanks avigutman - I was wondering, if you would CONNECT these dots BEFORE going into the answer choices correct ?

Almost like a DS re-phrasing

I ask because I notice one doesnt have to connect the dots (make such inferences) to get to the OA.

The answer choice turned out to be something that didnt need connecting the 3 different sentences..
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jabhatta2
thanks avigutman - I was wondering, if you would CONNECT these dots BEFORE going into the answer choices correct ?

Almost like a DS re-phrasing

I ask because I notice one doesnt have to connect the dots (make such inferences) to get to the OA.

The answer choice turned out to be something that didnt need connecting the 3 different sentences..

Yes, jabhatta2, I do connect the dots before going to the answer choices.
And, please take another look: I think you'll find that the OA does in fact require connecting the dots.
I don't think I've ever seen an official inference question that didn't require connecting the dots.
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@KarishmaB
Ma'am, please explain why is A wrong.
When we refine olive oil, we want to increase the quality. The quality is enhanced if the oelic acid is reduced.
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@KarishmaB
Ma'am, please explain why is A wrong.
When we refine olive oil, we want to increase the quality. The quality is enhanced if the oelic acid is reduced.


Note that our argument is talking about 'unrefined olive oil.'
We are not given anything about refined olive oil. Nothing is given about why refining is done and how it affects the olive oil. 'Refined' is not equal to 'better quality.' 'Unrefined oil' and 'Refined oil' are actually different products.
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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.
­
Premises:

The quality of unrefined olive oil is not actually defined in terms of acidity

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.

We are given that practically, quality is not defined in terms of acidity but higher quality oil has less free oleic acid (a measure of acidity). 
We need to find the conclusion supported by these premises.

(A)    When an olive oil is refined, the concentration of oleic acid in the oil is reduced.

We don’t know what happens on refining. 



(B)    The quality of an unrefined olive oil can be determined only by accurately measuring its acidity.



There could be many other ways of measuring quality of unrefined olive oil.



(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.


Correct. The premises tell us that acidity is a fair measure of quality. 

(D)    Free oleic acid is the only acid that unrefined olive oil contains.

No such information in the argument. 

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

We are given that quality is not defined in terms of acidity so the judges would not be judging their acidity. 

Answer (C)

Discussion on Inference Questions: https://youtu.be/PMnU9ULdSfs­
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I think, a more simple way to eliminate (A) can be that argument talks about ''free oleic acid'', on the other hand option (A) talks about ''oleic acid'' in general.
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