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GIS760
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tarek99
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GIS760
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Thanks for the reply.
OA is B.

Would any one explain why B is correct?

Thanks.
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GIS760
Thanks for the reply.
OA is B.

B doesn't look correct to me. "whether or not" is wordy, we can directly use "whether". Also when the whole sentence is in past tense, I don't see any reason for using present tense in "ultrasound is any better "
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bigoyal
GIS760
Thanks for the reply.
OA is B.

B doesn't look correct to me. "whether or not" is wordy, we can directly use "whether". Also when the whole sentence is in past tense, I don't see any reason for using present tense in "ultrasound is any better "

I agree. What's the source of this question? I honestly think that this type of question is not representative of the actual GMAT.
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tarek99
GIS760
Researchers agreed that the study of new treatments for heart attack patients was extremely important but more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself.

A. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than
B. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
C. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
D. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than
E. that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is


I choose C as my answer. The idiom tested here is "determine whether." So that eliminates all the answer choices except B and C. Option B is wrong because it uses "whether or not", which is redundant. So option C remains.


IMO A.

B -- is out for couple reasons 1) for determining and 2) whther or not
C, D, E 'that' is not idiomatic after 'but' here.



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