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There is an increasing trend in opting for hybrid cars or cars that us

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There is an increasing trend in opting for hybrid cars or cars that us  [#permalink]

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New post 19 Oct 2018, 22:44
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There is an increasing trend in opting for hybrid cars or cars that use rechargeable batteries to augment the gasoline engine. Car manufacturers claim that such cars drive longer per unit of gasoline since there is no gasoline used when the car is powered by batteries. In reality, these cars are powered by batteries only when the car is driving at low speeds and by gasoline engine otherwise. Therefore, in the region of Carmenia, hybrid cars provide little advantage over cars with comparable gasoline engines.

Which of the following if true strengthens author’s argument above

A.The speed breakers on the highways of Carmenia are smaller and lower in height than those on the highways of the neighbouring cities.
B.On an average, roads of Carmenia have significantly more speed breakers than the roads of any other city in the world
C.Hybrid cars typically extract slightly more energy from gasoline than regular cars do.
D.The Minimum Speed Limit in the nearby cities is well above the battery-operating range of a hybrid car
E.While travelling within Carmenia, the amount of gasoline consumed by a hybrid car is quite comparable to the amount of gasoline consumed by a conventional gasoline-engine driven car.

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Re: There is an increasing trend in opting for hybrid cars or cars that us  [#permalink]

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New post 19 Oct 2018, 23:33
How does the OA help strengthen the argument?
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Re: There is an increasing trend in opting for hybrid cars or cars that us  [#permalink]

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New post 19 Oct 2018, 23:58
I guess option E is the correct one for the following reason:

- Car manufacturers claim that hybrid cars drive longer per unit of gasoline.
- The argument states the opposite: "hybrid cars provide little advantage over cars with comparable gasoline engines."
- Option E supports the argument against hybrid cars, providing a fact that basically repeats the conclusion of the argument: "While travelling within Carmenia, the amount of gasoline consumed by a hybrid car is quite comparable to the amount of gasoline consumed by a conventional gasoline-engine driven car."

Option A strengthens the argument a bit: if there are lower speed breakers in Carmenia then you can go faster and use the battery less, decreasing the efficiency of your hybrid car. But it doesn't really state if you can go faster than the battery-operating range of a hybrid car.

Option B weakens the argument. So does option C.

Option D is out of scope geographically: we need info about Carmenia, not about neighboring cities.
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Re: There is an increasing trend in opting for hybrid cars or cars that us  [#permalink]

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New post 20 Oct 2018, 00:18
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Here's my answer. Pls feel free to add in any

The conclusion here is hybrid cars provide little advantage over gasoline-engine cars in Carmenia
The correct answer should strenghthen the above conclusion. Now let's assess the answer choices:

A.The speed breakers on the highways of Carmenia are smaller and lower in height than those on the highways of the neighbouring cities.
So? The argument does not compare Carmenia with neighboring cities at all --> Eliminate
B.On an average, roads of Carmenia have significantly more speed breakers than the roads of any other city in the world
Similar to A, no need for comparison here --> Eliminate
C.Hybrid cars typically extract slightly more energy from gasoline than regular cars do.
This mention regular cars are more advantage than hybrid cars in terms of energy extraction from gasoline. In fact it could weaken the conclusion. Another reason to consider for POE is the answer choice deals nothing specifically with Carmenia --> Eliminate
D.The Minimum Speed Limit in the nearby cities is well above the battery-operating range of a hybrid car
Out of Scope, does not align with conclusion about Carmenia --> Eliminate
E.While travelling within Carmenia, the amount of gasoline consumed by a hybrid car is quite comparable to the amount of gasoline consumed by a conventional gasoline-engine driven car
As the gas amount is comparable between 2 types of cars, this strengthens the argument --> Correct answer
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Re: There is an increasing trend in opting for hybrid cars or cars that us  [#permalink]

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New post 20 Oct 2018, 04:06
- Manufacturers claim that hybrid cars provide longer drive time
- This is because, when hybrid cars are driven at low speed, it uses the battery. But at high speed, it uses gasoline
- Conclusion: In Camernia, hybrid cars provide little or even no advantage over normal gasoline cars.
- Our ideal answer should support our conclusion, further proving that hybrid cars confers little or no advantage over their counterparts.
- Option A is out of scope.
- Option B is out of scope but subtly weakens our conclusion. If there are a lot of speedbreakers (bumps) on the roads in Carmernia, that means people will have to drive at low speed, making the car use battery, and ultimately offering more speed time. This would have shown that hybrid cars provide more advantage over gasoline cars. But remember, our answer should support the conclusion of little or no advantage.
Option E is aligns with our conlusion

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Re: There is an increasing trend in opting for hybrid cars or cars that us &nbs [#permalink] 20 Oct 2018, 04:06
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