AWEY 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

Hello,

The OA is E.
Could someone explain me how we come to this answer.

Thanks a lot!

Can firstly eliminate three options: A, C, and D. What "those" refer to in those options? Only B and E left...

duke wrote:

AWEY 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

Hello,

The OA is E.
Could someone explain me how we come to this answer.

Thanks a lot!

Can firstly eliminate three options: A, C, and D. What "those" refer to in those options? Only B and E left...

I think, there is no dout that "those" refer to "young adults"...no?

I would eliminate D because of "much". Since adults is countable, we must use many.

Then I would eliminate B because we are not looking for an infinitive

What about A, C and E? What is the reasoning behind?

Hi. Try to disguise the OA in the future, so people can figure out the answer.

A is wrong because of "doubling those," which in this sentence refers to nothing. The author intends for it to refer to young adults, but it could only refer to percent as it stands.
B is wrong because "to double" indicates that the number would double, but it already had doubled.
C is wrong for the same reason as A.
D is wrong for the same reason as A.
E is left.

E for me too..

A and B are out because of "Double"
twice should be used with percentages

(C) twice those the 1977 survey reported < Those refers to young adults but Young adults are not getting increased.. their number is getting increased
Try replacing Those with young adults and re read the sentence

(D) twice as much as those reported in the 1977 survey < Many should be used

(E) twice the number reported in the 1977 survey <= twice the number suits well

AWEY wrote:

duke wrote:

AWEY 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

Hello,

The OA is E.
Could someone explain me how we come to this answer.

Thanks a lot!

Can firstly eliminate three options: A, C, and D. What "those" refer to in those options? Only B and E left...

I think, there is no dout that "those" refer to "young adults"...no?

I would eliminate D because of "much". Since adults is countable, we must use many.

Then I would eliminate B because we are not looking for an infinitive

What about A, C and E? What is the reasoning behind?

Can anyone tell the differnece between when to use TWICE and when to use DOUBLE