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All high-powered racing engines have stochastic fuel injection. Stocha

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All high-powered racing engines have stochastic fuel injection. Stocha [#permalink]

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New post 18 Aug 2017, 12:31
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  15% (low)

Question Stats:

81% (00:58) correct 19% (01:14) wrong based on 79 sessions

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All high-powered racing engines have stochastic fuel injection. Stochastic fuel injection is not a feature that is normally included in the engines of production-line vehicles. Passenger sedans are production-line vehicles. Which of the following conclusions can be drawn from these statements?

(A) Passenger sedans do not usually have stochastic fuel injection.
(B) Stochastic fuel injection is found only in high-powered racing cars.
(C) Car manufacturers do not include stochastic fuel injection in passenger cars because they fear accidents.
(D) Purchasers of passenger cars do not normally purchase stochastic fuel injection because it is expensive.
(E) Some passenger sedans are high powered racing vehicles.

Master GMAT
[Reveal] Spoiler: OA

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All high-powered racing engines have stochastic fuel injection. Stocha [#permalink]

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New post 18 Aug 2017, 15:33
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SajjadAhmad wrote:
All high-powered racing engines have stochastic fuel injection. Stochastic fuel injection is not a feature that is normally included in the engines of production-line vehicles. Passenger sedans are production-line vehicles. Which of the following conclusions can be drawn from these statements?

(A) Passenger sedans do not usually have stochastic fuel injection.
(B) Stochastic fuel injection is found only in high-powered racing cars.
(C) Car manufacturers do not include stochastic fuel injection in passenger cars because they fear accidents.
(D) Purchasers of passenger cars do not normally purchase stochastic fuel injection because it is expensive.
(E) Some passenger sedans are high powered racing vehicles.

Master GMAT

Dear SajjadAhmad,

I'm happy to respond. :-)

This is an abysmal question for a variety of reasons. There is no such thing as "stochastic fuel injection"--the author was trying to make this sound technical by using a word he really didn't understand. One could have, say, a stochastic model of how fuel injection functions--perhaps this is what confused the author of the question.

Leaving that aside, the question is category-based, more like an LSAT question, but it's far to easy to be an LSAT question. If this "stochastic fuel injection" is not "normally included in the engines of production-line vehicles," and sedans are "production-line vehicles," then it would not be normally included in sedans. A slum-dunk syllogism.

OA = (A)

As someone who writes practice GMAT questions professionally, I would give this particular question a grade of a D.

Here's a much more successfully constructed CR practice question:
Apologizing to Crime Victims

Does all this make sense?
Mike :-)
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Re: All high-powered racing engines have stochastic fuel injection. Stocha [#permalink]

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New post 19 Aug 2017, 03:52
Only A can be concluded from the given info. Hence A

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Re: All high-powered racing engines have stochastic fuel injection. Stocha   [#permalink] 19 Aug 2017, 03:52
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All high-powered racing engines have stochastic fuel injection. Stocha

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