CR bible - GDP trouble!!

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arora007: Community Manager; Posts: 1048; Joined: Mon Aug 17, 2009 3:26 amFollowed by: 27 members; Location: India; Thanked: 51 times; GMAT Score:670

by arora007 » Wed Feb 02, 2011 3:02 pm

In 1980, Country A had a per capita gross domestic product (GDP) that was $5,000 higher than that of the European Economic Community. By 1990, the difference, when adjusted for inflation, had increased to $6,000. Since a rising per capita GDP indicates a rising average standard of living, the average standard of living in Country A must have risen between 1980 and 1990.
Which one of the following is an assumption on which the argument depends?
(A) Between 1980 and 1990, Country A and the European Economic Community experienced the same percentage increase in population.
(B) Between 1980 and 1990 the average standard of living in the European Economic Community fell.
(C) Some member countries of the European Economic Community had, during the 1980s, a higher average standard of living than Country A.
(D) The per capita GDP of the European Economic Community was not lower by more that $1,000 in 1990 than it had been in 1980.
(E) In 1990, no member country of the European Economic Community had a per capita GDP higher than that of Country A.

I have no clue why D is the answer. The explanation in the Bible seems to be too convoluted.

Plz help!!

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Source: Beat The GMAT — Critical Reasoning | Wed Feb 02, 2011 3:02 pm

Night reader: Legendary Member; Posts: 1337; Joined: Sat Dec 27, 2008 6:29 pmFollowed by: 10 members; Thanked: 127 times

by Night reader » Wed Feb 02, 2011 8:20 pm

arora007 wrote:In 1980, Country A had a per capita gross domestic product (GDP) that was $5,000 higher than that of the European Economic Community. By 1990, the difference, when adjusted for inflation, had increased to $6,000. Since a rising per capita GDP indicates a rising average standard of living, the average standard of living in Country A must have risen between 1980 and 1990.
Which one of the following is an assumption on which the argument depends?
(A) Between 1980 and 1990, Country A and the European Economic Community experienced the same percentage increase in population.
(B) Between 1980 and 1990 the average standard of living in the European Economic Community fell.
(C) Some member countries of the European Economic Community had, during the 1980s, a higher average standard of living than Country A.
(D) The per capita GDP of the European Economic Community was not lower by more that $1,000 in 1990 than it had been in 1980.
(E) In 1990, no member country of the European Economic Community had a per capita GDP higher than that of Country A.

I have no clue why D is the answer. The explanation in the Bible seems to be too convoluted.

Plz help!!

I have answered D in around 3 min-s. But I agree the question is convoluted, as the increase of GDP in EU is said to be not lower - it can be higher too. The main assumption behind such increase is inflation adjustment rate --> because we have inflation and not deflation we must reduce (decrease) and we have the increase effect. The change in GDP of EU is the distracting factor here. The main assumption is inflation - decrease, and we see increase of GDP.
I chose D for it equals the increase changes +1000 EU and 6,000 Country A of both GDPs

prachich1987: Legendary Member; Posts: 752; Joined: Sun Sep 12, 2010 2:47 amFollowed by: 10 members; Thanked: 20 times; GMAT Score:700

by prachich1987 » Wed Feb 02, 2011 8:47 pm

Even D is not the right answer here
Please go through below

https://www.beatthegmat.com/powerscore-c ... 73489.html

Thanks!
Prachi

mundasingh123: Legendary Member; Posts: 2330; Joined: Fri Jan 15, 2010 5:14 amFollowed by: 26 members; Thanked: 56 times

by mundasingh123 » Thu Feb 03, 2011 7:13 am

prachich1987 wrote:Even D is not the right answer here
Please go through below

https://www.beatthegmat.com/powerscore-c ... 73489.html

Hi Answer has to be D
per capita Income of Country A in 1980 - per capita Income of European Community in 1980 =5000
Let the rise in per capita Income of Country A in 1990 be X
Let the rise in per capita Income of European Community in 1990 be Y
So In 1990
X + 5000 - Y = 6000
X - Y = 1000
X is greather than Y by 1000
If we negate D , the conclusion is destroyed
I went thru the thread u posted Even if X - Y =1000 The conclusion stands

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mundasingh123: Legendary Member; Posts: 2330; Joined: Fri Jan 15, 2010 5:14 amFollowed by: 26 members; Thanked: 56 times

by mundasingh123 » Thu Feb 03, 2011 8:18 am

bros if u dont understand x + 5000 then pls lemme know

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arora007: Community Manager; Posts: 1048; Joined: Mon Aug 17, 2009 3:26 amFollowed by: 27 members; Location: India; Thanked: 51 times; GMAT Score:670

by arora007 » Thu Feb 03, 2011 9:31 am

mundasingh123 wrote:bros if u dont understand x + 5000 then pls lemme know

nai nai... $1000 to u!! Cheers!! its just that...the language is very convoluted... to convert into a formula is tough!

mundasingh123: Legendary Member; Posts: 2330; Joined: Fri Jan 15, 2010 5:14 amFollowed by: 26 members; Thanked: 56 times

by mundasingh123 » Thu Feb 03, 2011 10:28 am

arora007 wrote:
mundasingh123 wrote:bros if u dont understand x + 5000 then pls lemme know
nai nai... $1000 to u!! Cheers!! its just that...the language is very convoluted... to convert into a formula is tough!

The question requires application of Numbers.X has to be Positive because the conclusion says the Standard |Of Living Of A Increased

I Seek Explanations Not Answers

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