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The environmentally harmful emissions of cars can be reduced in two wa

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The environmentally harmful emissions of cars can be reduced in two wa  [#permalink]

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New post 20 Mar 2017, 12:29
3
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

62% (01:48) correct 38% (01:49) wrong based on 250 sessions

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Source: McGraw Hill GMAT

The environmentally harmful emissions of cars can be reduced in two ways. One way is to replace gasoline with a cleaner burning fuel, such as ethanol or gasohol. The second way is to use a hybrid engine that is powered by both electricity and combustion. Hybrid engines emit less pollution than do clean burning fuels, so an individual driving a hybrid car benefits the environment the most.

The argument above depends on which of the following assumptions?

A. Individuals have the option of choosing between hybrid cars and cleaner burning fuels.
B. Over the lifetime of the car, the cost of using cleaner burning fuels is more than the cost of buying a hybrid car.
C. The beneficial effect to the environment of using both a hybrid car and cleaner burning fuel is no greater than using a hybrid car alone.
D. People have an incentive to reduce environmentally harmful emissions.
E. There is no way to completely eliminate the environmentally harmful emissions of cars.

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Re: The environmentally harmful emissions of cars can be reduced in two wa  [#permalink]

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New post 20 Mar 2017, 14:35
1
The environmentally harmful emissions of cars can be reduced in two ways. One way is to replace gasoline with a cleaner burning fuel, such as ethanol or gasohol. The second way is to use a hybrid engine that is powered by both electricity and combustion. Hybrid engines emit less pollution than do clean burning fuels, so an individual driving a hybrid car benefits the environment the most.

The argument above depends on which of the following assumptions?

A. Individuals have the option of choosing between hybrid cars and cleaner burning fuels.
The poit is already mentioned in the argument and is not specifically an assumption that the reader has to make.
B. Over the lifetime of the car, the cost of using cleaner burning fuels is more than the cost of buying a hybrid car.
The cost is not discussed in the argument but what is discussed is the emissions
C. The beneficial effect to the environment of using both a hybrid car and cleaner burning fuel is no greater than using a hybrid car alone.
Correct choice since the argument provides two options and if one option had more benefits than the other then the buyers would buy the one with greater benefits.
D. People have an incentive to reduce environmentally harmful emissions.
This is a good point for why will they buy environment friendly vehicle but incentives are not the only way to make the consumer buy environment friendly things taxation can be one and heavy fines can be other.
E. There is no way to completely eliminate the environmentally harmful emissions of cars.
out of scope
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Re: The environmentally harmful emissions of cars can be reduced in two wa  [#permalink]

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New post 25 Mar 2017, 00:48
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Premise :
The environmentally harmful emissions of cars can be reduced in two ways. One way is to replace gasoline with a cleaner burning fuel, such as ethanol or gasohol. The second way is to use a hybrid engine that is powered by both electricity and combustion. Hybrid engines emit less pollution than do clean burning fuels .

Conclusion : so an individual driving a hybrid car benefits the environment the most.

Prephrase : Nothing more can be done to benefit the environment more than a hybrid car alone.

A. Individuals have the option of choosing between hybrid cars and cleaner burning fuels.
Out of scope. No impact on conclusion.

B. Over the lifetime of the car, the cost of using cleaner burning fuels is more than the cost of buying a hybrid car.
Out of scope. No impact on conclusion.

C. The beneficial effect to the environment of using both a hybrid car and cleaner burning fuel is no greater than using a hybrid car alone.
Matches with Prepahrase , correct. If negated conclusion will fall apart.

D. People have an incentive to reduce environmentally harmful emissions.
Out of scope. No impact on conclusion.

E. There is no way to completely eliminate the environmentally harmful emissions of cars.
Out of scope. No impact on conclusion.
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Re: The environmentally harmful emissions of cars can be reduced in two wa  [#permalink]

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New post 01 Nov 2017, 14:22
this is a common pattern in gmat, and only A and C are not out of scope. Nevertheless, A is wrong b/c A is already mentioned; "two choices"
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Re: The environmentally harmful emissions of cars can be reduced in two wa &nbs [#permalink] 01 Nov 2017, 14:22
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The environmentally harmful emissions of cars can be reduced in two wa

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