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Re: The municipality of the town of Calabia has allocated 50,000 parking [#permalink]
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OFFICIAL EXPLANATION



The municipality of the town of Calabia has allocated 50,000 parking spaces to be used by the general public. Cars owned by Calabian residents number 45,000, but every day more than 15,000 vehicles that are not owned by Calabian residents enter the town. It is quite clear that the town will suffer from an acute lack of parking spaces.

Which of the following would it be most useful to establish in order to evaluate the argument?



A. Whether the roads in Calabia are wide enough to allow cars to enter the town without causing traffic congestion

Incorrect.

To solve this Investigation question, first break down the argument. The first two sentences are premises, citing facts. The last sentence begins with the conclusion phrase It is quite clear so it's the argument's conclusion:

    Premise A: Calabia has 50,000 parking spaces for use by the general public
    +
    Premise B: the residents of Calabia own 45,000 cars but more than 15,000 foreign cars enter the town every day

    Conclusion: Calabia will have major parking problems

    Vital factor: ?

You are required to find the factor which is most crucial to the author's conclusion. The correct answer is a question which could support or weaken the conclusion depending on its answer.

This answer choice does not pose a significant question since it deals with traffic whereas the argument deals with parking alone.



B. Whether a sufficient number of Calabians drive their cars out of town during the time when non-Calabian cars enter Calabia

This answer choice may determine whether Calabia really has a parking problem. If only a few Calabians drive their cars out of town while non-Calabians enter, then there will surely be traffic problems since there are simply not enough spaces. However, if enough Calabian cars (~10,000) are out of town while the cars from outside are in Calabia, then there should not be a parking insufficiency.


C. Whether Calabian cars parked in the allocated spaces are allowed to be parked there continuously for more than 24 hours

Incorrect.

To solve this Investigation question, first break down the argument. The first two sentences are premises, citing facts. The last sentence begins with the conclusion phrase It is quite clear so it's the argument's conclusion:

    Premise A: Calabia has 50,000 parking spaces for use by the general public
    +
    Premise B: the residents of Calabia own 45,000 cars but more than 15,000 foreign cars enter the town every day

    Conclusion: Calabia will have major parking problems

    Vital factor: ?

You are required to find the factor which is most crucial to the author's conclusion. The correct answer is a question which could support or weaken the conclusion depending on its answer.

Determining this fact would make no difference to the argument. The argument focuses on how the commuting behavior of people affects parking, and not on what the law allows/prevents people from doing.



D. Whether non-Calabian car owners are required to pay for parking in the Calabia district

The argument deals with whether Calabia will have parking problems. Although charging for parking may deter non-Calabians from parking, we cannot be sure of this. We do not have enough information to assume that paid parking will not be readily accepted (and the car has to be parked somewhere!).

Besides, we are not supposed to be looking for a solution. We are supposed to find a way to determine whether there is a problem at all.



E. Whether a Calabian driving from an allocated parking space to a destination within the town's limits can be considered a common phenomenon

This would be an irrelevant piece of information. If a Calabian drives from one parking spot to another, then the town's parking status is not changed in any way.

GMAT Club Bot
Re: The municipality of the town of Calabia has allocated 50,000 parking [#permalink]
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