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Two types of fuels, Bio X and Bio Y, both made from natural resources

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Bunuel
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Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   30 Nov 2021, 02:30
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Two types of fuels, Bio X and Bio Y, both made from natural resources, are increasingly being used by vehicles around the country. Recent tests indicate that the complete combustion of a volume of Bio Y releases fewer pollutants in the air than the complete combustion of an equal volume of Bio X. Since both the government and the people of the country are determined to bring down the pollution levels in the long run, it can be expected that in 30 years from now, a significant number of cars will use only Bio Y.

Which of the following would be most useful to evaluate the argument’s conclusion?


(A) Whether the vehicles that currently use Bio X can also use Bio Y

(B) Whether the present day cars that run on Bio Y consume less fuel than the cars that run on Bio X to cover the same distance

(C) Whether 30 years from now the manufacturers’ profit margin for cars that consume BioY will be significantly higher than the profit margin of cars that consume Bio X

(D) Whether the resources used to make Bio Y are sustainable to cater to the demand of the fuel in the next thirty years and beyond

(E) Whether the price of cars that run on BioY will increase in the coming years.



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ElninoEffect
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Re: Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   30 Nov 2021, 04:02
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Bunuel wrote:
Two types of fuels, Bio X and Bio Y, both made from natural resources, are increasingly being used by vehicles around the country. Recent tests indicate that the complete combustion of a volume of Bio Y releases fewer pollutants in the air than the complete combustion of an equal volume of Bio X. Since both the government and the people of the country are determined to bring down the pollution levels in the long run, it can be expected that in 30 years from now, a significant number of cars will use only Bio Y.

Which of the following would be most useful to evaluate the argument’s conclusion?


(A) Whether the vehicles that currently use Bio X can also use Bio Y
Not necessary, even if they are not able to a significant number of new vehicles can be added to the road running on fuel Y.

(B) Whether the present day cars that run on Bio Y consume less fuel than the cars that run on Bio X to cover the same distance
Comparison has been done with pollutants released per volume of X and Y, hence B becomes irrelevant. This option would have been significant if the comparison wasn't done per volume.

(C) Whether 30 years from now the manufacturers’ profit margin for cars that consume BioY will be significantly higher than the profit margin of cars that consume Bio X
Profit margin is not in question here.

(D) Whether the resources used to make Bio Y are sustainable to cater to the demand of the fuel in the next thirty years and beyond
Eeeeexactly...! What if the resources required to make fuel Y will be over in the span of 30 years, the whole future dream of 30 years and beyond will go crumbling down. :D

(E) Whether the price of cars that run on BioY will increase in the coming years.
Again price is not in question here.



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AnirudhaS
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Re: Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   30 Nov 2021, 15:14
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ElninoEffect wrote:
Bunuel wrote:
Two types of fuels, Bio X and Bio Y, both made from natural resources, are increasingly being used by vehicles around the country. Recent tests indicate that the complete combustion of a volume of Bio Y releases fewer pollutants in the air than the complete combustion of an equal volume of Bio X. Since both the government and the people of the country are determined to bring down the pollution levels in the long run, it can be expected that in 30 years from now, a significant number of cars will use only Bio Y.

Which of the following would be most useful to evaluate the argument’s conclusion?


(A) Whether the vehicles that currently use Bio X can also use Bio Y
Not necessary, even if they are not able to a significant number of new vehicles can be added to the road running on fuel Y.

(B) Whether the present day cars that run on Bio Y consume less fuel than the cars that run on Bio X to cover the same distance
Comparison has been done with pollutants released per volume of X and Y, hence B becomes irrelevant. This option would have been significant if the comparison wasn't done per volume.

(C) Whether 30 years from now the manufacturers’ profit margin for cars that consume BioY will be significantly higher than the profit margin of cars that consume Bio X
Profit margin is not in question here.

(D) Whether the resources used to make Bio Y are sustainable to cater to the demand of the fuel in the next thirty years and beyond
Eeeeexactly...! What if the resources required to make fuel Y will be over in the span of 30 years, the whole future dream of 30 years and beyond will go crumbling down. :D

(E) Whether the price of cars that run on BioY will increase in the coming years.
Again price is not in question here.



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Another problem with B is it says "present day cars"
But the conclusion is to bring down the pollution level in the long run.
So we cannot really say that the present day cars would survive another 30 years. Also we cannot say no new cars would be introduced in the future.
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Re: Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   06 Dec 2021, 22:35
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I'm still a bit confused with the option B. What if even tho a volume of X consumes less fuels than that of Y does, a car needs more volumes of X than those of Y to cover one mile? That would probably make the total fuel consumption of X is greater than that of Y per mile?
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Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   07 Dec 2021, 00:41
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Kailin wrote:
I'm still a bit confused with the option B. What if even tho a volume of X consumes less fuels than that of Y does, a car needs more volumes of X than those of Y to cover one mile? That would probably make the total fuel consumption of X is greater than that of Y per mile?


Option B says, whether the present day cars that run on Bio Fuel Y consumes less fuel per mile than Bio X.
Results we can get from evaluating this statement are:
a)Present day cars consume less Bio Fuel Y than Fuel X per mile. - Good it means less fuel consumption less pollutants but can we say the same for future cars or present day cars in future.
b)Present day cars consumes equal quantity of Bio fuel X and Y per mile: Even then there would be less pollutant + the reasoning of first applies here as well.
c)Present day cars consumes more quantity of Bio fuel Y than X per mile: Here the evaluation fails to give us the desired result because we don't know how much more we can burn bio-fuel Y so that the pollutants released becomes equal to that of the pollutants released by X. (A second evaluation is needed). Hence not sufficient.

Hope that clears your doubt. :)
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Re: Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   14 Mar 2023, 07:37
Answer is wrong. If a car uses more of a fuel with less combustion, then the combustion level per mile driven can be equal in both types of fuel. Like lets say car uses 10 litres of Bio Y per 100 km while only 6 litres of Bio X per 100 km.
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Re: Two types of fuels, Bio X and Bio Y, both made from natural resources [#permalink] New post   25 Apr 2024, 19:29
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