major repair

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major repair

by AIM GMAT » Mon Apr 18, 2011 8:33 am
Good PARADOX RESOLVING question

In 1990 major engine repairs were performed on 10 percent of the cars that had been built by the National Motor Company in the 1970s and that were still registered. However, the corresponding figure for the cars that the National Motor Company had manufactured in the 1960s was only five percent.

Which of the following, if true, most helps to explain the discrepancy?

(A) Government motor vehicle regulations generally require all cars, whether old or new, to be inspected for emission levels prior to registration.
(B) Owners of new cars tend to drive their cars more carefully than do owners of old cars.
(C) The older a car is, the more likely it is to be discarded for scrap rather than repaired when major engine work is needed to keep the car in operation.
(D) The cars that the National Motor Company built in the 1970s incorporated simplified engine designs that made the engines less complicated than those of earlier models.
(E) Many of the repairs that were performed on the cars that the National Motor Company built in the 1960s could have been avoided if periodic routine maintenance had been performed.
Thanks & Regards,
AIM GMAT

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by force5 » Mon Apr 18, 2011 1:22 pm
C is the best

they discard it rather than repairing it hence lesser % in 1960 than in 1970

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by SarahLiz » Mon Apr 18, 2011 1:27 pm
I would also choose C.
Test date: 5/18/2011

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by champmag » Mon Apr 18, 2011 10:17 pm
+1 for C

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by AIM GMAT » Tue Apr 19, 2011 12:33 am
You guys rock , OA is indeed C.
Thanks & Regards,
AIM GMAT