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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07 Jan 2005, 21:13
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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 physicianâ€™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 makerâ€™s control will affect the outcome of the decision makerâ€™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 oneâ€™s control is favorable, then oneâ€™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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07 Jan 2005, 22:10
E for me
I can't find the circumstance in D. If "circumstance" is "effective treatment for Y", then assuming that it is favorable makes no sense. Alternatively, if circumstance is "patient is suffering either from disease X or else from disease Y" then again, assuming that it is favorable makes no sense.

E says that when treating for Y carries success and that there is a possibility of the patient having Y, then a doctor ought to take steps to cure Y, notwithstanding if the patient has X since there is no cure for it anyways.
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Paul

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08 Jan 2005, 10:08
OA is D ......

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08 Jan 2005, 11:33
Its D ...

E talks about changing the circumstance to fit the strategy.
No one is changing circumstance but as suggested rightly in D if circumstance is beyond the control then oneâ€™s strategy must be based on the assumption that this circumstance is in fact favorable.
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Bhimsen Joshi

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08 Jan 2005, 22:11
I am going to play devil's advovate here

what's wrong with A?

problem says

The patient is suffering either from disease X or else from disease Y, but there is no available test for distinguishing X from Y.

since there is an effective treatment for Y but no treatment for X

meaning even if a patient has desease X, because there is no available treatment, it is more important to treat the desease than finding out the actual desease.
In essance as choice
A says "it is more important to treat the diseases than to determine which of the two diseases the patient has."
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08 Jan 2005, 22:34
'A' says it is more important to treat the disease - but when there is no treatment for Y - this reasoning falls apart.
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09 Jan 2005, 08:58
http://www.gmatclub.com/phpbb/viewtopic ... +reasoning
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09 Jan 2005, 08:58
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