Physician: The patient is suffering either from disease X or : GMAT Critical Reasoning (CR)
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# Physician: The patient is suffering either from disease X or

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Physician: The patient is suffering either from disease X or [#permalink]

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24 Jul 2008, 19:26
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Physician: The patient is suffering either from disease X or else from disease Y, but there is no available test for distinguishing X from Y. Therefore, since there is an effective treatment for Y but no treatment for X, we must act on the assumption that the patient has a case of Y.
The physician’s reasoning could be based on which one of the following principles?
(A) In treating a patient who has one or the other of two diseases, it is more important to treat the diseases than to determine which of the two diseases the patient has.
(B) If circumstances beyond a decision maker’s control will affect the outcome of the decision maker’s actions, the decision maker must assume that circumstances are unfavorable.
(C) When the soundness of a strategy depends on the truth of a certain assumption, the first step in putting the strategy into effect must be to test the truth of this assumption.
(D) When success is possible only if a circumstance beyond one’s control is favorable, then one’s strategy must be based on the assumption that this circumstance is in fact favorable.
(E) When only one strategy carries the possibility of success, circumstances must as much as possible be changed to fit this strategy.

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24 Jul 2008, 19:46
x97agarwal wrote:
Physician: The patient is suffering either from disease X or else from disease Y, but there is no available test for distinguishing X from Y. Therefore, since there is an effective treatment for Y but no treatment for X, we must act on the assumption that the patient has a case of Y.
The physician’s reasoning could be based on which one of the following principles?
(A) In treating a patient who has one or the other of two diseases, it is more important to treat the diseases than to determine which of the two diseases the patient has.
(B) If circumstances beyond a decision maker’s control will affect the outcome of the decision maker’s actions, the decision maker must assume that circumstances are unfavorable.
(C) When the soundness of a strategy depends on the truth of a certain assumption, the first step in putting the strategy into effect must be to test the truth of this assumption.
(D) When success is possible only if a circumstance beyond one’s control is favorable, then one’s strategy must be based on the assumption that this circumstance is in fact favorable.
(E) When only one strategy carries the possibility of success, circumstances must as much as possible be changed to fit this strategy.

I would go D. The physician's reasoning here is basically that if you don't know the circumstance (diagnosis), you might as well try the only strategy (treatment) that could potenitally work.

A: So wrong I don't even know how to begin to explain why.
B: This is basically the opposite of what the physician's reasoning is.
C: Testing the truth would be getting the proper diagnosis, which is not possible here.
D: Correct -- Success is possible only if a circumstance beyond one's control is favorable (diagnosis of disease Y), then one's strategy (treatment) must be based on the assumption that this circumstance is in fact favorable (the patient has disease Y)
E: Close -- you can't change the circumstances here (whether the patient has disease Y)
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24 Jul 2008, 20:10
I'll go with D as well. I completely agree with the Zoinnk's reasonings for selecting this option. BTW, this is an excellent question. Could you tell me what is the source?
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25 Jul 2008, 10:48
x97agarwal wrote:
Physician: The patient is suffering either from disease X or else from disease Y, but there is no available test for distinguishing X from Y. Therefore, since there is an effective treatment for Y but no treatment for X, we must act on the assumption that the patient has a case of Y.
The physician’s reasoning could be based on which one of the following principles?
(A) In treating a patient who has one or the other of two diseases, it is more important to treat the diseases than to determine which of the two diseases the patient has.
(B) If circumstances beyond a decision maker’s control will affect the outcome of the decision maker’s actions, the decision maker must assume that circumstances are unfavorable.
(C) When the soundness of a strategy depends on the truth of a certain assumption, the first step in putting the strategy into effect must be to test the truth of this assumption.
(D) When success is possible only if a circumstance beyond one’s control is favorable, then one’s strategy must be based on the assumption that this circumstance is in fact favorable.
(E) When only one strategy carries the possibility of success, circumstances must as much as possible be changed to fit this strategy.

-We cannot determine between X and Y
- we have treatment for Y so we assume a person has disease Y

(A) In treating a patient who has one or the other of two diseases, it is more important to treat the diseases than to determine which of the two diseases the patient has.
>>>No we treat the patient for Y because we assume he is sufering from Y

(B) If circumstances beyond a decision maker’s control will affect the outcome of the decision maker’s actions, the decision maker must assume that circumstances are unfavorable.
>>>No we treat the patient for Y because we assume he is sufering from Y.We are hoping he is suffering from Y. So Y is a fovorable circumstance.

(C) When the soundness of a strategy depends on the truth of a certain assumption, the first step in putting the strategy into effect must be to test the truth of this assumption.
>>>No.We dont have the liberty to make a choice. We dont have a choice because we dont have a cure for X.

(D) When success is possible only if a circumstance beyond one’s control is favorable, then one’s strategy must be based on the assumption that this circumstance is in fact favorable.
>>>FITS.we have treatment for Y so we assume a person has disease Y

(E) When only one strategy carries the possibility of success, circumstances must as much as possible be changed to fit this strategy.
>>>No . We are not changing the circumstances.
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26 Jul 2008, 12:35
IMO D

Patient is suffering either for X or Y. Treatment for Y is available so assume Y.

(A) In treating a patient who has one or the other of two diseases, it is more important to treat the diseases than to determine which of the two diseases the patient has.
WRONG: No comparison between healing and determine
(B) If circumstances beyond a decision maker’s control will affect the outcome of the decision maker’s actions, the decision maker must assume that circumstances are unfavorable.
WRONG: assuming Y, which is favorable
(C) When the soundness of a strategy depends on the truth of a certain assumption, the first step in putting the strategy into effect must be to test the truth of this assumption.
WRONG: Is treatment for Y good? Don't know.
(D) When success is possible only if a circumstance beyond one’s control is favorable, then one’s strategy must be based on the assumption that this circumstance is in fact favorable.
Correct: Treatment of Y carries possibility > favorable; Assume other cases are favorable
(E) When only one strategy carries the possibility of success, circumstances must as much as possible be changed to fit this strategy.
WRONG: No news on circumstances and how to change.
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Re: CR: Physician   [#permalink] 26 Jul 2008, 12:35
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