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Harcourt Terminal

Expert replies
by vikram4689 » Tue Jun 12, 2012 5:33 am
Most of AmTrans' weekly trains travel to and from Harcourt Terminal, a heavily trafficked train station. AmTrans depends for its success on running trains in all types of weather and punctual arrivals, and is consequently planning to replace half of its current trains with bullet trains, which can operate regardless of weather conditions and which can travel at twice the speed of AmTrans' current trains.

Which of the following, if true, could present the most serious disadvantage for AmTrans in replacing its current trains with bullet trains?

(A) Bullet trains would enable AmTrans to run trains in weather conditions that its current trains cannot operate in.
(B) The cost of manufacturing AmTrans' current trains so that they could travel at twice the speed they currently do is expected to decline over the next several years.
(C) The ability of the bullet trains to travel at twice the speed of current trains would enable AmTrans to eliminate the ticket refunds currently provided to passengers on trains more than 20 minutes late.
(D) None of AmTrans' competitors that use Harcourt Terminal are considering buying bullet trains.
(E) When bullet trains leave stations at high speeds, the resulting heat and friction on the tracks delays arriving trains.

OA : E
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Source: — Critical Reasoning |

by gmat_and_me » Tue Jun 12, 2012 6:05 am
You have some doubts in this question ?

A & C are advantages and D is out of scope. B is unlikely since
we are talking about present. Besides, B does not rule out delays
under some weather conditions. Hence E should be the answer.

HTH
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by Kasia@EconomistGMAT » Tue Jun 12, 2012 6:34 am
@Vikram4689
Do you have any particular problem with this task or does it seem generally difficult?
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by vikram4689 » Tue Jun 12, 2012 5:58 pm
I was able to solve the question later :) Can you help me in sailing through assumption ques, i know the concept but execution / prephrasing is where i lack. For e.g. i was not able to dismiss D as above poster did. I was figuring out a reason to ensure that if others are not using then it doesn't have detrimental effect on AmTrans. because of this i take long time (3 min) and sometimes get questions wrong even after spending too much time
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