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The country of Maravia has severe air pollution, 80 percent [#permalink]
16 Jan 2006, 22:10
100% (01:04) correct
0% (00:00) wrong based on 4 sessions
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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.
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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