Beat The GMAT

real2008 · Fri Jul 03, 2009 3:46 am

The growth of the railroads led to the abolition of local times, which was determined by when the sun reached the observer's meridian and differing from city to city, and to the establishment of regional times.
(A) which was determined by when the sun reached the observer's meridian and differing
(B) which was determined by when the sun reached the observer's meridian and which differed
(C) which were determined by when the sun reached the observer's meridian and differing
(D) determined by when the sun reached the observer's meridian and differed
(E) determined by when the sun reached the observer's meridian and differing

why not D?

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goelmohit2002 · Fri Jul 03, 2009 2:46 pm

IMO parallelism.

led to X, to Y, to Z.....

here Y does not preced "to" in D....so we need non restrictive "which"

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dumb.doofus · Fri Jul 03, 2009 3:39 pm

It cannot be D because we are using "differed", a past participle.. whereas we need to use a present participle here.. that is differing.. for the basic reason that the local times still in the present world differ from city to city..

so first using 3:2 we can remove A, B and C coz which refers to local times.. relative pronoun which is used to refer to things and not time..

Between D and E, D is wrong because we need to use a present participle.. not a past participle as explained above.

IMO E

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cata1yst · Fri Jul 03, 2009 6:43 pm

I am going with B.

What's the OA?

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abcdefg · Fri Jul 03, 2009 7:50 pm

real2008 you've posted a lot of questions but you never post the OA. c'mon.

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gmat740 · Fri Jul 03, 2009 8:15 pm

Guys OA -E
SOURCE= 1000SC's

I believe I asked the same question over here a month ago.

anyways here is the answer :

For referring to time= "when"
So, a,b and c out