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Director
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The country of Maravia has severe air pollution, 80 percent [#permalink]
 16 Jan 2006, 22:10
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The country of Maravia has severe air pollution, 80 percent of which is caused by the exhaust fumes of cars. In order to reduce the number of cars on the road, the government is raising taxes on the cost of buying and running a car by 20 percent. This tax increase, therefore, will significantly reduce air pollution in Maravia.
Which of the following, if true, most seriously weakens the argument above?
(A) The government of Maravia is in the process of building a significant number of roadways.
(B) Maravia is an oil-producing country and is able to refine an amount of gasoline sufficient for the needs of its population.
(C) Maravia has had an excellent public transportation system for many years.
(D) Ninety percent of the population of Maravia is very prosperous and has a substantial amount of disposable income.
(E) In Maravia, cars that emit relatively low levels of pollutants cost 10 percent less to operate, on average, than do cars that emit high levels of pollutants.
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Director
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C for me
excellent public transportation system for many years ----->air pollution
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IE IMBA 2010
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VP
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Let me vote for D.
Rich people will not care much about tax increase.
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Auge um Auge, Zahn um Zahn  !
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VP
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I would vote for D here.
The argument assmes that "people will be discouraged to buy and run cars due to the tax increase". If people had large disposable incomes, the assumption doesn't stand true. Hence D!
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"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."
- Bernard Edmonds
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CEO
Joined: 20 Nov 2005
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D
"This tax increase, therefore, will significantly reduce air pollution in Maravia." means
Tax Increase ---> People discouraged from buying and running cars ---> Less Pollution
D is weakening the effect "People discouraged from buying and running cars". Due to weakening of this effect, conclusion can not stand true.
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008
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Director
Joined: 10 Oct 2005
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Government wants to discourage people from buying cars by increasing taxes on cars.
This measure will be ineffective if people are still able to cars at the existing rate. So people should be rich and prosperous enough.
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Current Student
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What do us plutocratic billionaires care about a measly 20% increase in auto taxes? Clearly (D)
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SVP
Joined: 16 Oct 2003
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Yes D should be it.
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Manager
Joined: 09 Jun 2005
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D it is....
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Director
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Gud WOrk Guys..OA is D
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Director
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D.
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