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According to surveys by the National Institute on Drug

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Manager
Joined: 27 May 2009
Posts: 185
According to surveys by the National Institute on Drug [#permalink]

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18 Jun 2009, 12:09
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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

D or E? and why?

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VP
Joined: 05 Jul 2008
Posts: 1340

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18 Jun 2009, 13:32
urchin wrote:
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

D or E? and why?

E. 20 percent of some thing is a number. Hence it should be twice the number reported.

In D, Assuming those refers to young adults, it changes the meaning of the sentence.
Intern
Joined: 17 Jun 2009
Posts: 1

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19 Jun 2009, 03:30
icandy wrote:
urchin wrote:
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

D or E? and why?

E. 20 percent of some thing is a number. Hence it should be twice the number reported.

In D, Assuming those refers to young adults, it changes the meaning of the sentence.

Just clarifying. The Survey was reporting the number i.e. the percentage not the adults. those is plural so it can not be a pronoun for number that is singular.

Hence E is the correct answer.
Manager
Joined: 27 May 2009
Posts: 185

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19 Jun 2009, 03:41
Thanks everyone...it really helped.
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I do not suffer from insanity. I enjoy every minute of it.

Manager
Joined: 07 Jun 2009
Posts: 187

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19 Jun 2009, 05:39
I would go with E too.

'Much' is used for things that can not be counted. e.g 'too much of exercise', 'much heavier', 'too much to talk' etc.
Since '20% of young adults' is a number, E would be the right choice.
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Manager
Joined: 27 May 2009
Posts: 185

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20 Jun 2009, 01:30
1
aknine wrote:
I would go with E too.

'Much' is used for things that can not be counted. e.g 'too much of exercise', 'much heavier', 'too much to talk' etc.
Since '20% of young adults' is a number, E would be the right choice.

I beg to differ here. Although the correct option is E its not for the reason quoted above.
20% is not a number since we dont know 20% of what. Hence much will be used along with any estimate stated in percentage. Had it been 20% of 1000 youth then many would have been appropriate.

as much as 10% of smokers die due to lung cancer..... (correct).
as many as 10% of smokers die due to lung cancer..... (Incorrect)
This is my own opinion. Let me know counterviews if any......
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I do not suffer from insanity. I enjoy every minute of it.

Manager
Joined: 07 Jun 2009
Posts: 187

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20 Jun 2009, 22:44
urchin wrote:
aknine wrote:
I would go with E too.

'Much' is used for things that can not be counted. e.g 'too much of exercise', 'much heavier', 'too much to talk' etc.
Since '20% of young adults' is a number, E would be the right choice.

I beg to differ here. Although the correct option is E its not for the reason quoted above.
20% is not a number since we dont know 20% of what. Hence much will be used along with any estimate stated in percentage. Had it been 20% of 1000 youth then many would have been appropriate.

as much as 10% of smokers die due to lung cancer..... (correct).
as many as 10% of smokers die due to lung cancer..... (Incorrect)
This is my own opinion. Let me know counterviews if any......

Yes you are right. Thanks for correcting me.
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Manager
Joined: 05 Apr 2007
Posts: 234

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21 Jun 2009, 12:31
"those" has a reference problem in D...E is the right answer...

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To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Drug abuse statistics   [#permalink] 21 Jun 2009, 12:31
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