underinflation

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underinflation

by Ankitaverma » Sun Nov 24, 2013 6:53 pm
Car owners who inflate their tires properly can substantially boost their vehicles' fuel efficiency, since the increase in car-road friction can waste up to five percent of car fuel by underinflation.

(A) Car owners who inflate their tires properly can substantially boost their vehicles' fuel efficiency, since the increase in car-road friction can waste up to five percent of car fuel by underinflation.
(B) Because the underinflation of tires can waste up to five percent of a car's fuel by increasing car-road friction, car owners can substantially boost their vehicles' fuel efficiency by properly inflating the tires.
(C) Their vehicles' fuel efficiency is substantially boosted by car owners through the proper inflation of tires that, when underinflated, can waste up to five percent of car fuel by an increase in car-road friction.
(D) The proper inflation of tires by car owners, due to the fact that underinflation can waste up to five percent of a car's fuel by the increase of car-road friction, can substantially boost their fuel efficiency.
(E) Because up to five percent of a car's fuel are wasted through the increases in car-road friction when the tires are underinflated, car owners properly inflating tires can substantially boost their fuel efficiency.

Q/A-b
Source: — Sentence Correction |

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by theCodeToGMAT » Sun Nov 24, 2013 11:40 pm
{A} - INCORRECT; "their tires" goes to "car owners"- modifier issue.
{B} - CORRECT
{C} - INCORRECT; "Their" has no antecedent
{D} - INCORRECT; "due to" doesn't fit as per the meaning
{E} - INCORRECT; SVA error - "are"
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by [email protected] » Tue Nov 26, 2013 6:18 pm
Hi Ankitaverma,

SCs that are completely underlined are often going to incorporate Modification rules (if you notice one or more "commas", then it's almost certain that you'll have to deal with a modifier).

Each of the five answer choices "moves" the various parts of the sentence around; most cause modification problems and/or introduce new words that cause additional problems.

The correct answer uses an opening "modification phrase" to describe the subject of the sentence, THEN names that subject. This is a common pattern in these types of modification questions and you will likely see it at least once on the GMAT (so keep an eye out for it).

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