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In the United States, vacationers account for more than half

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Joined: 04 Jan 2011
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In the United States, vacationers account for more than half [#permalink] New post 05 Apr 2011, 21:36
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D
E

Difficulty:

  55% (hard)

Question Stats:

55% (03:14) correct 45% (02:05) wrong based on 11 sessions
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.
[Reveal] Spoiler: OA
Senior Manager
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Joined: 09 Feb 2011
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Concentration: General Management, Social Entrepreneurship
Schools: HBS '14 (A)
GMAT 1: 770 Q50 V47
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Re: Vacationers visiting acquariums [#permalink] New post 05 Apr 2011, 21:51
proportion of vacationers as against local residents is higher in visitors to pure acquairum as compared to visitos to zoo. we are looking for a cause/ reason for this.
B gives a clear possible reason - most states have their own zoos, while pure acquariums are rarer- which would mean vacationers would tend to visit them while visiting a state which has both, as it is more likely that the state from which a vacationer comes has a zoo acquarium and not a pure one. this can give a possible reason and hence is corret option
A talks of local residents and not vacationers, and hence cant describe/justify behavior of vacationers- irrelevant

C - We ae talking or pproportion of vacationers in total visitors. C cant explain why the proportion is higher. it could be possible eplanation of why the total number of visitors to pure acqauriums is higher if that was the case
E provides no new information, it just elaborates in what is already dtsated in teh question - 'of relatively modest scope' cant povide a cause/ reason

D is irrelevant, it provides a statistic which adds no value to the discussion
Re: Vacationers visiting acquariums   [#permalink] 05 Apr 2011, 21:51
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