gmat paper test question

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gmat paper test question

by jumsumtak » Sun Nov 06, 2011 10:56 am
In the United States, vacationers account for more than half of all visitors to what are technically called "pure aquariums" but for fewer than one quarter of all visitors to zoos, which usually include a "zoo aquarium" of relatively modest scope.
Which of the following, if true, most helps to account for the difference described above between visitors to zoos and visitors to pure aquariums?
(A) In cities that have both a zoo and a pure aquarium, local residents are twice as likely to visit the aquarium as they are to visit the zoo.
(B) Virtually all large metropolitan areas have zoos, whereas only a few large metropolitan areas have pure aquariums.
(C) Over the last ten years, newly constructed pure aquariums have outnumbered newly established zoos by a factor of two to one.
(D) People who visit a zoo in a given year are two times more likely to visit a pure aquarium that year than are people who do not visit a zoo.
(E) The zoo aquariums of zoos that are in the same city as a pure aquarium tend to be smaller than the aquariums of zoos that have no pure aquarium nearby.

Please answer with apt explanations..
Source: — Critical Reasoning |

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by thestartupguy » Sun Nov 06, 2011 11:30 am
IMO: B
jumsumtak wrote:In the United States, vacationers account for more than half of all visitors to what are technically called "pure aquariums" but for fewer than one quarter of all visitors to zoos, which usually include a "zoo aquarium" of relatively modest scope.
Which of the following, if true, most helps to account for the difference described above between visitors to zoos and visitors to pure aquariums?
(A) In cities that have both a zoo and a pure aquarium, local residents are twice as likely to visit the aquarium as they are to visit the zoo. <Weakens the argument>
(B) Virtually all large metropolitan areas have zoos, whereas only a few large metropolitan areas have pure aquariums. <Can be the right option. But I would like to see other options>
(C) Over the last ten years, newly constructed pure aquariums have outnumbered newly established zoos by a factor of two to one. <The number of aquariums is not in question>
(D) People who visit a zoo in a given year are two times more likely to visit a pure aquarium that year than are people who do not visit a zoo. <irrelevant. There is no comparison between local visitors and the vacationers>
(E) The zoo aquariums of zoos that are in the same city as a pure aquarium tend to be smaller than the aquariums of zoos that have no pure aquarium nearby. <Size is not in question>

Please answer with apt explanations..
Eliminating other options, I got B.I don't like the option B. Please tell me if it's correct.

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by jumsumtak » Sun Nov 06, 2011 11:43 am
B is the correct answer.

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by neelgandham » Sun Nov 06, 2011 6:13 pm
IMO B - msr4mba explained it all !
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by mankey » Thu Nov 10, 2011 8:15 am
Why cant it be A? Please explain.

Thanks.