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If current trends continue, by the year 2010 carbon emission

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RonPurewal
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Sat Mar 26, 2011 1:11 am 
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ManhattanGMAT Staff


Posts: 7146
poonamchiK wrote:
Hi there Ron,
i am unable to make out the singular subject out here. Pls can some1 help me with this?

'current trends' continue, 'carbon emissions' will soar. So what is the main subject. I was conveniently able to shortlist to A and B and hurts to not being able to understand why its not 'those' but in fact that. pls can you help me see?

Thx a ton.
P


i posted the following earlier in the thread:
as far as deciding a vs. b, just look at the pronoun that/those: it refers to the singular noun "level". therefore, you must choose that, which is singular, so b > a.

you have to use your understanding of the meaning of the sentence to figure out what 'that' stands for.
the comparison is “X is higher than Y”; this comparison makes sense when X and Y are levels (“this level is higher than that level”), but is nonsense if X and Y are emissions (you can't say “these emissions are higher than those emissions”, unless you are literally saying that they are higher up in the atmosphere).
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poonamchiK
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Sat Mar 26, 2011 11:31 am 
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Students


Posts: 102
Thank you.
Now I can make sense to look at level instead of corbon emissions.

Thx Ron. Tht helped to clear the air a bit.

P
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jnelson0612
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Sun Mar 27, 2011 7:53 pm 
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Good. :-)

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jp.jprasanna
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Sat Jan 21, 2012 2:29 pm 
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Prospective Students


Posts: 122
RonPurewal wrote:
s.ashwin.rao wrote:
Boy too much in one post...just one question isn't "more than one-third higher than" redundant?

first --
OFFICIALLY CORRECT ANSWERS ARE CORRECT!
do not question officially correct answers!
far too many students on this forum make the mistake of questioning the correct answers; please note that doing so is a complete waste of your time and effort. i.e., exactly 0% of the time that you spend posting "isn't this official answer wrong?" is productive, and exactly 100% of that time is wasted.

"is this correct?" is NEVER a productive question to ask about one of GMAC's correct answers -- the answer is always yes.
"is this wrong?" / "is this X type of error?" is NEVER a productive question to ask about one of GMAC's correct answers -- the answer is always no.

instead, the questions you should be asking about correct official answers, if you don't understand them, are:
"why is this correct?"
"how does this work?"
"what understanding am i lacking that i need to understand this choice?"

this is a small, but hugely significant, change to your way of thinking -- you will suddenly find it much easier to understand the format, style, and conventions of the official problems if you dispose of the idea that they might be wrong.

Quote:
What is the use of "more than" here.


i'm not sure i understand the question -- but, at risk of stating the obvious, i'll give the meaning: the use of "more than" is to signify that one quantity is greater than another quantity.
e.g.,
i am six feet tall --> signifies that i am exactly six feet tall
i am more than six feet tall --> signifies that my height is *greater* than six feet.

certainly not "redundant"; it changes the meaning of the statement from "x = y" to "x > y".


Hi- Thanks for all the explanation - One more question, could you please let me know the usage " more than one-third higher than"

Could you please let me know how this works! I was stumped seeing this at the 1st place! :-(
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RonPurewal
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Thu Jan 26, 2012 7:20 am 
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ManhattanGMAT Staff


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jp.jprasanna wrote:
Hi- Thanks for all the explanation - One more question, could you please let me know the usage " more than one-third higher than"

Could you please let me know how this works! I was stumped seeing this at the 1st place! :-(


let's say bob is six feet tall.
if the ceiling is eight feet high, the ceiling is 1/3 higher than bob's head.
if the ceiling is more than eight feet high, the ceiling is more than 1/3 higher than bob's head.
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thanghnvn
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Mon Mar 12, 2012 5:18 am 
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Posts: 206
I agree B is oa.

one thing I want to discuss in C

If current trends continue, by the year 2010 carbon emissions in the United States //will soar to a level more than one-third higher than were those// in 1990, according to official projections.

C. would soar to a level more than one-third higher than it was


"it" in C above is wrong because "it" refer to "the level in 2010". "if" refers to total noun phrase in the fisrt haft of comparision. "it" is used when we talk about the same thing. "that" is used when we talk of the different thing which is compared with the first thing.

Ron told me this point. I juat apply to this problem

is my thinking correct?, pls, confirm, Ron, Manhantan experts.
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tim
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Sun Apr 08, 2012 5:05 pm 
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ManhattanGMAT Staff


Posts: 2242
Location: Southwest Airlines, seat 21C
ONE reason C is wrong is indeed because the "it" doesn't have a proper antecedent to attach to..

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Tim Sanders
Manhattan GMAT Instructor
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ntr1989512
 Post subject: Re: If current trends continue, by the year 2010 carbon emission
 Post Posted: Wed May 23, 2012 4:50 am 
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Posts: 31
RonPurewal wrote:
your final sentence -- "i can eat an apple faster than you" -- is actually ok, since it is like my latter example: there is no ambiguity, and there is also no change of tense.


hi ron!
"i can eat an apple faster than you" is right?
it could mean"i can eat an apple faster than YOU EAT AN APPLE"
or "i can eat an apple faster than I EAT YOU"!!
and the latter is ridiculous!!
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