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Since 1990 the global economy has grown more than it did

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Since 1990 the global economy has grown more than it did  [#permalink]

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New post 17 Jun 2007, 18:42
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Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

(A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture

(B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when the agriculture began

(C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture

(D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began

(E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agricultre
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 05 Dec 2013, 10:58
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Hello monish.

Just want to elaborate the explanation a bit. Hope it helps.

Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.
Correct.
"Since" is signal of present perfect tense. --> "has grown" is correct.
time frame: from X to Y --> correct.

B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when agriculture began.
Wrong.
from when X to what? --> correct idiom is: from X to Y.

C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture.
Wrong.
- "that which" is awkward.
- Same problem as in B. The correct time frame should be "from X to Y".

D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began
Wrong.
- Because of "since" --> present simple tense "exceeds" is incorrect.
- Same problem as in B. The correct time frame should be "from X to Y".

E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture.
Wrong.
- Because of "since" --> present simple tense "exceeds" is incorrect.
- Same problem as in B. The correct time frame should be "from X to Y".

Hope it helps.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post Updated on: 28 Dec 2011, 17:50
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Got D......but confused between A and D.can anyone please explain?


Thanks in advance

Got it

Originally posted by mydreammba on 26 Dec 2011, 15:56.
Last edited by mydreammba on 28 Dec 2011, 17:50, edited 1 time in total.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 30 Dec 2011, 14:40
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In D, "from when" is an awkward phrase, and makes it grammatically unclear as to exactly when agriculture began.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post Updated on: 18 Jul 2013, 03:18
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Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.
B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when agriculture began.
C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture.
D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began
E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture.

I have read this Manhattan forum:
to eliminate option E: the explanation was given as below:please can some one explain
what it did' doesn't make any sense:
* the growth didn't 'do' anything
* there's no other verb to which 'did' could logically be parallel to complete the comparison

Originally posted by skamal7 on 18 Jul 2013, 03:05.
Last edited by Zarrolou on 18 Jul 2013, 03:18, edited 1 time in total.
Merging similar topics.
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New post 18 Jul 2013, 03:17
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skamal7 wrote:
I have read this Manhattan forum:
to eliminate option E: the explanation was given as below:please can some one explain
what it did' doesn't make any sense:
* the growth didn't 'do' anything
* there's no other verb to which 'did' could logically be parallel to complete the comparison


E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture.

* the growth didn't 'do' anything
This means that it's inappropriate to say "the growth exceeds what it did", from a logical point of view. The first part is fine ("the growth exceeds ") the second one is logically flawed as the growth cannot do anything ("what it did").
* there's no other verb to which 'did' could logically be parallel to complete the comparison
Example:
I sing better than Micheal Jackson does (sing).<== does stands for the verb "sing"
Now look at E: there is no verb that "did" can stand for. To give you another example, consider the correct answer:

A) Since 1990 the global economy has grown more than it did (grow)during the 10,000 years from the beginning of agriculture to 1950.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 18 Jul 2013, 03:23
he growth of the global economy since 1990 exceeds what it did (exceeds) for the 10,000 years from the beginning of agriculture

Why did cant be parallel to exceeds can you please explain?
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New post 18 Jul 2013, 03:28
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skamal7 wrote:
he growth of the global economy since 1990 exceeds what it did (exceeds) for the 10,000 years from the beginning of agriculture

Why did cant be parallel to exceeds can you please explain?


Does this sentence make sense?

The growth of the global economy since 1990 exceeds what it did (exceeds) for the 10,000 years (...)

The growth since 1990 exceeds what it exceeds-exceeded for the 10000 years (...) <== does something like this make sense?

The intended verb that "did" should stand for is "grow", but here there is no such verb: there is "growth" (a noun).
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 18 Jul 2013, 03:36
skamal7 wrote:
Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.
B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when agriculture began.
C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture.
D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began
E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture.

I have read this Manhattan forum:
to eliminate option E: the explanation was given as below:please can some one explain
what it did' doesn't make any sense:
* the growth didn't 'do' anything
* there's no other verb to which 'did' could logically be parallel to complete the comparison


Hi,

here we are comparing the economy growth since 1990 till today ..and economy growth during 10000 years from beginning......

since there is comparison it must be parallel.


option A:

A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

FIRST HALF SENTENCE: sub: THE GLOBAL ECONOMY. VERB : HAS GROWN
SECOND HALF SENTENCE: SUB: IT(this IT is referring to GLOBAL ECONOMY) VERB: DID( means it represent the same action done by subject i.e. has grown)
HENCE YOU SEE THEY ARE PARALLEL ...BOTH PRONOUN AND VERB ARE CLEAR.

E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture.

FIRST HALF SENTENCE: sub: THE GROWTH OF GLOBAL ECONOMY (FOLLOWED BY PREPOSITIONAL PHRASE) VERB : EXCEEDS
SECOND HALF SENTENCE: SUB: IT(this IT is referring to GROWTH) VERB: DID
NOT PARALLEL


NOW IF you replace this DID with EXCEEDS IN OPTION E
SENTENCE BECOMES:

The growth of the global economy since 1990 exceeds what IT EXCEEDS for the 10,000 years from the beginning of agriculture.===> THIS IS ILLOGICAL..

SIMILARLY CHECK FOR A:

A) Since 1990 the global economy has grown more than IT HAS GROWN during the 10,000 years from the beginning of agriculture to 1950.===>THIS DOES MAKES SENSE...

HOPE IT HELPS
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 22 Aug 2016, 23:39
Since 1990 the global economy has grown more than it did during the 10000 years from the beginning of agriculture>> to 1950.
(IM: the global eco has grown more 1990 onwards than it did during 10,000 years from beg of argi till 1950)

A. Since 1990 the global economy has grown more than it did during the 10000 years from the beginning of agriculture
-> keep aside, not sure at first shot but after eliminating others, this seems to be better than other answers
B. Since 1990 the growth of global economy has been more than that it did during 10000 years, from when agriculture began
( began-to 1950 is wrong)
C. The growth of the global economy since 1990 exceeds that which had been for 10000 years from the beginning of agriculture.
D. The growth of the global economy since 1990 exceeds what it has been for 10000 years, from when agriculture began had been
E. The growth of the global economy since 1990 exceeds what it did for the 10000 years from the beginning of agriculture.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 20 Oct 2019, 07:10
Remembering this simple rule can be handy to solve this problem:

whenever since is used to indicate a timeline - present perfect tense needs to be used.

Only A uses present perfect tense and so A is the answer.

Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

(A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture

(B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when the agriculture began

(C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture

(D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began

(E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agricultre
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 20 Oct 2019, 07:56
santorasantu wrote:
whenever since is used to indicate a timeline - present perfect tense needs to be used.


santorasantu: Can you please substantiate this rule with some more references or examples. I am not too sure of this rule and hence the question.

My methodology
  • Strike off options B and D which used when without a specific time reference.
  • Strike off C and E for incorrect comparison of Growth in 1990 to incongruent references.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 20 Oct 2019, 09:44
Hi saukrit Please see below for some notes and examples related to the usage of since:

since is used as a preposition, a conjunction and an adverb to refer to a time, and as a conjunction to introduce a reason.

In the current example, Since is used as an adverb to refer to a time. This means that the event started somewhere in the past the effect/action is still ongoing. so, a present perfect tense is used.
egmat has some nice article on this. You can fine more info on the rule I mentioned in the following link:

https://e-gmat.com/blogs/since-vs-from/

I guess also Manhattan has a similar example but cannot find it now :(

Hope this helps,
Santora


saukrit wrote:
santorasantu wrote:
whenever since is used to indicate a timeline - present perfect tense needs to be used.


santorasantu: Can you please substantiate this rule with some more references or examples. I am not too sure of this rule and hence the question.

My methodology
  • Strike off options B and D which used when without a specific time reference.
  • Strike off C and E for incorrect comparison of Growth in 1990 to incongruent references.
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 28 Oct 2019, 02:17
I found option B very confusing.
The following explanation is a compilation of responses of RonPurewal from Manhattan forum.
Dear Experts, GMATNinja mikemcgarry IanStewart VeritasKarishma daagh @abhimana @empowergmat egmat EMPOWERgmatRichC AjiteshArun please correct the explanation if I have misunderstood any statement:

1. Use of "from when" - There isn't anything wrong with the use of "from when". However it is wrong in this context. In this case, we need to check parallelism between two elements - "when agriculture began" and "1950". "1950" = noun phrase while "when agriculture began" - is not. "The beginning of agriculture" is a better choice over the former.

2. Use of "has been" - The sentence is comparing two absolute statistics - growth during 10000 years and growth since 1990 till time of this report. Use of "has been" suggests that the statistics are somehow updating themselves constantly in real time. Which is not really meaningful.

Thus these are the two most important reasons why we eliminate option B.

Experts, please correct if I am wrong.
Thank you!
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Re: Since 1990 the global economy has grown more than it did  [#permalink]

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New post 28 Oct 2019, 02:53
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B. Since 1990 the growth of the global economy has been more than that it did during 10000 years, from when agriculture began.

1. There is an idiom as from … to Y
In B, it is from --when agriculture began-- (from a dependent clause) to 1950 (to a noun)
In A, it is from the beginning (from a noun) to 1950(another noun)
Which is parallel?

2. B Growth has been -- 'has been' is a linking verb and it is passive
A. Agriculture has grown is an active verb and is dynamic.

3. More than that it did -- is wordy and awkward

However, the second and third are not even necessary. One can dislodge B based on parallelism alone.
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Re: Since 1990 the global economy has grown more than it did   [#permalink] 28 Oct 2019, 02:53
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