According to surveys by the National Institute on Drug : GMAT Sentence Correction (SC)
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# According to surveys by the National Institute on Drug

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According to surveys by the National Institute on Drug [#permalink]

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23 Sep 2005, 11:50
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51. According to surveys by the National Institute on Drug Abuse, about 20 percent of young adults used cocaine in 1979, doubling those reported in the 1977 survey.
(A) doubling those reported in the 1977 survey
(B) to double the number the 1977 survey reported
(C) twice those the 1977 survey reported
(D) twice as much as those reported in the 1977 survey
(E) twice the number reported in the 1977 survey
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23 Sep 2005, 12:37
I think E is fine...

We are comaring 20%, a number,

in D those is comparing adults rather than the number...
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23 Sep 2005, 12:45
Ritesh:
could you elaborate more?
I was really stuck on this, btw D & E, I thnk the number of drug users increased so thats what we are comparing, in E it just says "a" number increased...

I would really like a good discussion on this topic..

riteshgupta1 wrote:
I think E is fine...

We are comaring 20%, a number,

in D those is comparing adults rather than the number...
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23 Sep 2005, 13:00
According to surveys by the National Institute on Drug Abuse, about 20 percent of young adults used cocaine in 1979, doubling those reported in the 1977 survey.
(D) twice as much as those reported in the 1977 survey
(E) twice the number reported in the 1977 survey

if you break D, it looks something like this..
twice as much as those (adults) reported in the 1977 survey.

I think sentence is more fluid with THE NUMBER, since the number seems to indicate the 20% percent correctly...
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23 Sep 2005, 17:47
fresinha12 wrote:
Ritesh:
could you elaborate more?
I was really stuck on this, btw D & E, I thnk the number of drug users increased so thats what we are comparing, in E it just says "a" number increased...

I would really like a good discussion on this topic..

riteshgupta1 wrote:
I think E is fine...

We are comaring 20%, a number. in D those is comparing adults rather than the number...

As much as is used for non-count noun but here the noun, adults, is count-noun so go with number in E.
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24 Sep 2005, 05:21
Precisely Himalaya's logic!

as much as is incorrect here!

So E it is!
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24 Sep 2005, 05:40
Percentages are tricky. We arent given a concrete number of countable adults so Ill have to go with D.

OA pleeeease
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24 Sep 2005, 10:52
I Picked D
but OA is E.

Thanks guys.
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Re: SC # 49 Survey by National Institute [#permalink]

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18 Sep 2010, 02:36
GMATT73 wrote:
Percentages are tricky. We arent given a concrete number of countable adults so Ill have to go with D.

OA pleeeease

Yes you are.
20% of young adults.
You dont know how many adults, but it is actually a concrete number.

Hope that helps.
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Re: SC # 49 Survey by National Institute [#permalink]

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20 Sep 2010, 18:06
I would go with E, since people are being compared
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Re: SC # 49 Survey by National Institute [#permalink]

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20 Sep 2010, 19:46
I didn't like those and selected E. OA please
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Re: SC # 49 Survey by National Institute   [#permalink] 20 Sep 2010, 19:46
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# According to surveys by the National Institute on Drug

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