Double Vs Twice

Expert replies

sanjaylakhani: Senior | Next Rank: 100 Posts; Posts: 47; Joined: Wed Apr 30, 2008 8:13 pm

by sanjaylakhani » Sun Aug 03, 2008 8:06 am

A survey by the National Council of Churches showed that in 1986 there were 20,376 female ministers, almost 9 percent of the nation's clergy, twice as much as 1977.

(A) twice as much as 1977
(B) twice asn many as 1977
(C) double what it was in 1977
(D) double the figure for 1977
(E) a number double that of 1977's

OA- D

Can somebody, pls summarize the difference between Double and Twice.
I came across number of questions, each with different logic. I know Double is an adjective and twice is an adverb and that "twice as many" is preferred idiom.

Apart from the above can any expert pls summarize the usage of twice and double.

Stuart...pls help..........................

Source: Beat The GMAT — Sentence Correction | Sun Aug 03, 2008 8:06 am

ildude02: Master | Next Rank: 500 Posts; Posts: 320; Joined: Sun Jan 13, 2008 10:00 pm; Thanked: 10 times

by ildude02 » Sun Aug 03, 2008 9:07 am

here, D is correct because all the other choices are wrong. a and b compare the number of families to the year 1977 . b would have been correct if it were, "as many as in 1977". a is also wrong since "much" is wrong with countable objects. Cs "it was" doesnt have an antecedent. Choice E's possesive "1977's" makes the comparision illogicalis and it should be "that of 1977".

aj5105: Legendary Member; Posts: 1169; Joined: Sun Jul 06, 2008 2:34 amFollowed by: 1 member; Thanked: 25 times

by aj5105 » Thu Jun 04, 2009 5:28 am

Can somebody please explain why (C) is wrong?

Help appreciated.

typhoonguywlblwu: Junior | Next Rank: 30 Posts; Posts: 21; Joined: Fri Mar 27, 2009 4:11 am

by typhoonguywlblwu » Thu Jun 04, 2009 9:31 am

Hi Aj5015

c IS incorrect because the 'it' is ambiguous.It would refere to the percentage or to the number .Hence, D is the best answer

hemanth28: Master | Next Rank: 500 Posts; Posts: 157; Joined: Tue Dec 04, 2007 9:05 am; Thanked: 9 times; GMAT Score:680

Re: Double Vs Twice

by hemanth28 » Thu Jun 04, 2009 10:43 am

sanjaylakhani wrote:A survey by the National Council of Churches showed that in 1986 there were 20,376 female ministers, almost 9 percent of the nation's clergy, twice as much as 1977.

(A) twice as much as 1977
(B) twice asn many as 1977
(C) double what it was in 1977
(D) double the figure for 1977
(E) a number double that of 1977's

OA- D

Can somebody, pls summarize the difference between Double and Twice.
I came across number of questions, each with different logic. I know Double is an adjective and twice is an adverb and that "twice as many" is preferred idiom.

Apart from the above can any expert pls summarize the usage of twice and double.

Stuart...pls help..........................

Expert opinion please ..

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umaa: Legendary Member; Posts: 727; Joined: Sun Jun 08, 2008 9:32 pmFollowed by: 1 member; Thanked: 8 times

Re: Double Vs Twice

by umaa » Thu Jun 04, 2009 11:43 am

sanjaylakhani wrote:A survey by the National Council of Churches showed that in 1986 there were 20,376 female ministers, almost 9 percent of the nation's clergy, twice as much as 1977.

(A) twice as much as 1977
(B) twice asn many as 1977
(C) double what it was in 1977
(D) double the figure for 1977
(E) a number double that of 1977's

OA- D

Can somebody, pls summarize the difference between Double and Twice.
I came across number of questions, each with different logic. I know Double is an adjective and twice is an adverb and that "twice as many" is preferred idiom.

Apart from the above can any expert pls summarize the usage of twice and double.

Stuart...pls help..........................

A - Wrong - It should be "Twice as many as IN 1977"; Also, as MUCH as is wrong. It should be as many as - numbers

B - Wrong - It should be "Twice as many as IN 1977"
C - There is no proper reference for IT
D - Correct answer; We can use double based on the meaning.

Twise as much as 1:2
Double the figure for 1:3
Even though this answer is not clear, its the only option which sounds ok.

E - that of 1977's; It should be that of 1977 or 1977's

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