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Wind resistance

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by nahid078 » Thu Sep 11, 2014 2:24 am
Wind resistance created by opening windows while driving results in a fuel penalty as great or greater than is incurred by using air conditioning.

A. as great or greater than is incurred by using air conditioning
B. that is as great or greater than is incurred using air conditioning
C. as great as or greater than that of using air conditioning
D. at least as great as air conditioning’s
E. at least as great as that incurred by using air conditioning
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by Uva@90 » Thu Sep 11, 2014 6:09 am
nahid078 wrote:Wind resistance created by opening windows while driving results in a fuel penalty as great or greater than is incurred by using air conditioning.

A. as great or greater than is incurred by using air conditioning
B. that is as great or greater than is incurred using air conditioning
C. as great as or greater than that of using air conditioning
D. at least as great as air conditioning’s
E. at least as great as that incurred by using air conditioning
Hi Nahid,

This SC is comparing the Fuel penalty by opening the window to the fuel penalty incurred by using air conditioning.

So, Options C and D gets eliminated for wrong comparison.

Out of A, B and E, Only E uses the correct IDIOM "X AS GREAT AS Y"

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Uva
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by [email protected] » Thu Sep 11, 2014 11:00 am
Hi nahid078,

Uva has correctly explained this SC, so I won't rehash that here.

One of the aspects to remember about SCs is that the grammar rules involved in any prompt are essentially just patterns. So beyond knowing root grammar rules, you should also build up your ability to spot common patterns.

There are a variety of "2-part" phrases that the GMAT writers frequently use in their SCs. Some are common ("either….or", "neither…nor") and some are rarer ("just as….so"), but they're all worth knowing since that knowledge should help you to find the correct answer faster.

Here, we have "as…as", which is a fairly common 2-parter. I'll bet that you see this phrase at least once on Test Day, so make sure to be on the lookout for it.

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