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PT27, S1, Q7 - Because of the recent recession
This question asks us to resolve a paradox. We're asked to explain how it could be that the most widely read magazines could be seeing such drastically different results than other magazines in Country A. Here are the two statements we're asked to reconcile.
1. the survival of the most widely read magazines is in grave doubt.
2. the number of financially successful magazines in Country A is greater than ever.
To do this, we'll need an answer choice that distinguishes the most widely read magazines from other magazines.
(A) affects both groups - the most widely read magazines and other magazines. Since it doesn't distinguish the most widely read magazines it can't explain the discrepant findings.
(B) is irrelevant. What concerns television shows plays no role in the apparent discrepancy from the stimulus.
(C) distinguishes the most widely read magazines from other magazines and provides a source for the discrepant findings - ad revenue vs. revenue from circulation.
(D) affects both groups - the most widely read magazines and other magazines. Since it doesn't distinguish the most widely read magazines it can't explain the discrepant findings.
(E) is irrelevant. Surviving does not equate to financially successful, so we don't have any points of comparison.
PT27, S1, Q17 - The stable functioning of
Great question! And the simple answer is no. A claim that is written explicitly can never be an assumption. An assumption is by definition unstated.
This question asks us to identify the role of the claim that a society is stable only if its laws tend to increase the happiness of its citizens.
The first sentence of this argument is the conclusion and can be identified by the words "this is clear from" that begin the second sentence. Everything after the first sentence is evidence for why the first sentence is true. Thus, answer choice (B) properly identifies the role of the claim.
(A) is not true, the first sentence is the conclusion.
(C) is not true, the claim does not challenge the conclusion, but rather supports it.
(D) could possibly be the correct answer to another argument, but the statement does not follow as a result of the conclusion, but rather supports the conclusion.
(E) would be accurate if the claim was an example of a general principle. In fact this claim is a general principle, not an illustration of one. We know this because of the words "only if."
PT27, S1, Q19 - Pollen and other allergens can
Tough question. And the fact that you were tempted by answer choice (A) does seem to indicate a misread of the last statement. We know that histamines play no role in the processes by which cold produce their symptoms, but that doesn't mean that histamines play no role in causing colds! A slight but important difference.
This question asks us to infer from the series of facts stated in the stimulus.
(A) cannot be inferred from the stimulus. We're given information as to what causes symptoms of colds, but not what causes colds themselves.
(B) is out of scope. The difficulty by which these conditions are treated is not related to us in the information.
(C) could be false. It could be the case that antihistamines are effective at treating congestion caused by colds.
(D) is a bit tempting because we know that antihistamines make you drowsy, but that's not the same thing as treating sleeplessness. Also, we don't even know that sleeplessness sometimes accompanies allergies!
(E) must be true. We can infer this from the last sentence. If histamines play no role in the processes by which colds produce their symptoms, then antihistamines that treat those symptoms would not be doing so by blocking the action of histamines.