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GMAT PREP SC question

by alex.gellatly » Fri Apr 20, 2012 6:10 pm
The yield of natural gas from Norway's Troll gas field is expected to increase annually until the year 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for 50 years' production.

A. 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for
B. 2005 and then to stabilize at six billion cubic feet a day, an extraction rate that will allow at least
C. 2005 and then stabilizing at six billion cubic feet a day, with such an extraction rate at the least allowing
D. 2005, then stabilizing at six billion cubic feet a day, alloying such an extraction rate for at least
E. 2005, then stabilizing at six billion cubic feet a day, which will allow such an extraction rate for at least
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by GmatKiss » Fri Apr 20, 2012 10:32 pm
alex.gellatly wrote:The yield of natural gas from Norway's Troll gas field is expected to increase annually until the year 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for 50 years' production.

A. 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for
B. 2005 and then to stabilize at six billion cubic feet a day, an extraction rate that will allow at least
C. 2005 and then stabilizing at six billion cubic feet a day, with such an extraction rate at the least allowing
D. 2005, then stabilizing at six billion cubic feet a day, alloying such an extraction rate for at least
E. 2005, then stabilizing at six billion cubic feet a day, which will allow such an extraction rate for at least
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by alex.gellatly » Fri Apr 20, 2012 10:42 pm
care to explain?
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by sam2304 » Fri Apr 20, 2012 11:21 pm
The yield of natural gas is expected to do two things - to increase ... and then to stabilize ...

C/D/E - stabilizing is not parallel to 'to increase'
A/E - which refers to day - wrong usage.

IMO B.
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by alex.gellatly » Sun Apr 22, 2012 2:00 am
So, when you use which it can only refer to the noun right before it, not the whole noun phrase, right? That is why A and E are wrong. So we must use an extraction rate because in A we don't know what which is referring to.

Thanks everyone!
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by sam2304 » Sun Apr 22, 2012 2:25 am
alex.gellatly wrote:So, when you use which it can only refer to the noun right before it, not the whole noun phrase, right? That is why A and E are wrong. So we must use an extraction rate because in A we don't know what which is referring to.

Thanks everyone!
which can only refer to the noun right before it, not the whole noun phrase - This is not the case always. Check this link

https://www.beatthegmat.com/when-relativ ... tml#455908
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by EducationAisle » Sun Apr 22, 2012 9:12 am
Did you really get it on GMATPrep? This is a OG12 question (#63).

This kind of a construction is very common on GMAT and it would benefit you to be comfortable with this. Couple of other OG problems that use this construct are #38 and #48.

By the way, you might want to correct "alloying" to "allowing" in option D.
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