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The average fuel efficiency of vehicles sold nationwide during the per

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The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post Updated on: 20 Dec 2018, 09:06
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The average fuel efficiency of vehicles sold nationwide during the period 2000- 2004 was 25 miles per gallon; the corresponding figure during the period 1995- 1999 was 20 miles per gallon. The national average price of gasoline during the period 2000-2004 was $2 per gallon; the corresponding figure during the period 1995-1999 was $1.60 per gallon.

The statements above, if true, best support which of the following conclusions?


A) The average fuel efficiency of vehicles sold nationwide should reach 30 miles per gallon for the period 2005-2009.

B) The national average price of gasoline during 1997 was lower than the corresponding price during 2003.

C) Rising gasoline prices led consumers to purchase more fuel-efficient cars.

D) Between the two described time periods, the national average fuel efficiency and the national average gasoline price both increased at roughly the same rate.

E) Consumers spent more money on gasoline during the period 2000-2004 than during the period 1995-1999.

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Originally posted by vad3tha on 25 Aug 2014, 00:30.
Last edited by Bunuel on 20 Dec 2018, 09:06, edited 1 time in total.
Renamed the topic and edited the question.
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Re: The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post 25 Aug 2014, 01:54
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The average fuel efficiency of vehicles sold nationwide during the period 2000- 2004 was 25 miles per gallon; the corresponding figure during the period 1995- 1999 was 20 miles per gallon. The national average price of gasoline during the period 2000-2004 was $2 per gallon; the corresponding figure during the period 1995-1999 was $1.60 per gallon.

The statements above, if true, best support which of the following conclusions?

A)The average fuel efficiency of vehicles sold nationwide should reach 30 miles per gallon for the period 2005-2009. We cant say this based on what is given in the argument

B)The national average price of gasoline during 1997 was lower than the corresponding price during 2003. We are given a range of years and do not have any information about individual years and how low or high they were relative to the average they are part of

C) Rising gasoline prices led consumers to purchase more fuel-efficient cars. *could be true*. Lets keep this aside and make sure that D and E can be totally eliminated

D)Between the two described time periods, the national average fuel efficiency and the national average gasoline price both increased at roughly the same rate. 5/20=1/4 (Fuel Efficiency). 0.4/1.6=1/4 (Price of Gasoline). Yes we can very confidently say this without any doubt. C is thus eliminated as D is a stronger choice

E)Consumers spent more money on gasoline during the period 2000-2004 than during the period 1995-1999. We cant say this. Maybe consumers stopped putting miles on their milometer and on the contrary saved money during 2000-2004
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Re: The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post 25 Aug 2014, 07:28
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The average fuel efficiency of vehicles sold nationwide during the period 2000- 2004 was 25 miles per gallon; the corresponding figure during the period 1995- 1999 was 20 miles per gallon. The national average price of gasoline during the period 2000-2004 was $2 per gallon; the corresponding figure during the period 1995-1999 was $1.60 per gallon.

The statements above, if true, best support which of the following conclusions?
B)The national average price of gasoline during 1997 was lower than the corresponding price during 2003.
>> As per arg we have any avg value so cant prove this.It can be or cant be.
D)Between the two described time periods, the national average fuel efficiency and the national average gasoline price both increased at roughly the same rate.>> Correct.
5/20=1/4 .40/1.60=1/4
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Re: The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post 22 Oct 2016, 09:25
ANSWER SHOULD BE D, SINCE RATIOS FOR FUEL EFFICIENCY AND AVG. GASOLINE PRICE ARE THE SAME WHEN COMPARED IN THE TWO TIME PERIODS
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Re: The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post 20 Dec 2018, 09:04
Can anyone suggest a strong reason to eliminate C?
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Re: The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post 20 Dec 2018, 10:51
Mike03 wrote:
Can anyone suggest a strong reason to eliminate C?


C-- Not a must be true scenario. What if, the technology improved and therefore efficiency of vehicles improved. In such a case C is not true.
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The average fuel efficiency of vehicles sold nationwide during the per  [#permalink]

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New post 20 Dec 2018, 12:00
ShankSouljaBoi wrote:
Mike03 wrote:
Can anyone suggest a strong reason to eliminate C?


C-- Not a must be true scenario. What if, the technology improved and therefore efficiency of vehicles improved. In such a case C is not true.



Option C:Rising gasoline prices led consumers to purchase more fuel-efficient cars.

Now since nothing is mentioned about the purchase of cars in the passage.
Scene 1: In year 2001 price of gasoline was 3 dollars
But in 2002 it was 1 dollars
in 2003 it was 2 dollars and 2004 it was 2 dollars again

Avg price comes to 2 dollars
But can you see that price did decrease once in 2002 ...so you can't say for sure that price increase of gasoline lead to buying fuel efficient cars

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