a question from 300CR's

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[email protected]: Junior | Next Rank: 30 Posts; Posts: 23; Joined: Sun Aug 15, 2010 9:58 pm

by [email protected] » Thu Aug 26, 2010 1:12 am

To avoid economic collapse, Russia must increase its GNP by 20%. However, due to the structure of its economy, if the 20% threshold is reached, then a 40% increase in GNP is achievable.
Assuming that the above statements are true, which one of the following must also be true?
(A) If ethnic strife continues in Russia, then a 20% increase in GNP will be unattainable.
(B) If a 40% increase in Russia's GNP is impossible, its economy will collapse.
(C) If Russia's GNP increases by 40%, its economy will not collapse.
(D) If the 20% threshold is reached, then a 40% increase in GNP is achievable and a 60% increase is probable.
(E) If Russia's economy collapses, then it will not have increased its GNP by 40%.

Please explain why C is incorrect and the correct ans?

Source: Beat The GMAT — Critical Reasoning | Thu Aug 26, 2010 1:12 am

pradeepkaushal9518: Legendary Member; Posts: 1309; Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members; Thanked: 33 times

by pradeepkaushal9518 » Thu Aug 26, 2010 2:13 am

the right asnwer is B because if russia doesn't reach 20% it WILL collapse and if it reaches 20% then 40% is possible. therefore if 40% is impossible then they must not have reached the 20% which means the economy will collapse.

C is incorrect to prevent the economy from collapse it should reach 20 % not 40 %.

its an old question please search in the forum

A SMALL TOWN GUY

saurabhmahajan: Master | Next Rank: 500 Posts; Posts: 250; Joined: Thu Jan 07, 2010 2:21 am; Thanked: 10 times

by saurabhmahajan » Fri Aug 27, 2010 12:06 am

I too went for C becoz If Russia's GNP increases by 40% that means it has crossed the 20% threshold.
But if a 40% increase in Russia's GNP is impossible,its economy will collapse...but here it might be the case that it has crossed 20% mark but failed to reach 40% mark (since its said "is achievable" and not "achieved").

But the result is i am wrong

Thanks and regards,
Saurabh Mahajan

I can understand you not winning,but i will not forgive you for not trying.

diebeatsthegmat: Legendary Member; Posts: 1119; Joined: Fri May 07, 2010 8:50 amFollowed by: 3 members; Thanked: 29 times

by diebeatsthegmat » Sun Aug 29, 2010 5:37 pm

[email protected] wrote:To avoid economic collapse, Russia must increase its GNP by 20%. However, due to the structure of its economy, if the 20% threshold is reached, then a 40% increase in GNP is achievable.
Assuming that the above statements are true, which one of the following must also be true?
(A) If ethnic strife continues in Russia, then a 20% increase in GNP will be unattainable.
(B) If a 40% increase in Russia's GNP is impossible, its economy will collapse.
(C) If Russia's GNP increases by 40%, its economy will not collapse.
(D) If the 20% threshold is reached, then a 40% increase in GNP is achievable and a 60% increase is probable.
(E) If Russia's economy collapses, then it will not have increased its GNP by 40%.

Please explain why C is incorrect and the correct ans?

goes for B

iLdern: Newbie | Next Rank: 10 Posts; Posts: 5; Joined: Mon Jul 12, 2010 5:08 pm

by iLdern » Mon Aug 30, 2010 9:31 am

I think the reason C is wrong is because it is possible for the economy to fail even though they pass 40 % growth.

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