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part 2 of DS questions that stumped me from GMATPrep2

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Intern
Joined: 31 Oct 2011
Posts: 22
Location: United Arab Emirates
GMAT 1: 700 Q45 V40
GPA: 3.41
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Kudos [?]: 10 [0], given: 26

part 2 of DS questions that stumped me from GMATPrep2 [#permalink]  07 Dec 2011, 17:50
00:00

Difficulty:

5% (low)

Question Stats:

76% (02:17) correct 23% (00:36) wrong based on 13 sessions
In a certain year the UN's total expenditure was \$1.6billion. Of this amount, 67.8% was paid by the 6highest-contributing countries,and the balance was paid by the remaining 153 countries. Was Country X among the 6 highest-contributing countries?

i) 56% of the total expenditures was paid by the 4 highest-contributing countries, each of which paid more than country X

ii) Country X paid 4.8% of the total expenditure.
[Reveal] Spoiler: OA
Current Student
Joined: 16 Sep 2010
Posts: 227
Location: United States
Concentration: Finance, Real Estate
GMAT 1: 740 Q48 V42
Followers: 7

Kudos [?]: 50 [0], given: 2

Re: part 2 of DS questions that stumped me from GMATPrep2 [#permalink]  07 Dec 2011, 22:42
Statement 1 tells us that the top 4 accounted for 56% of the expenditures. Since it makes no statement of X we have no idea where X may fall. Therefore insufficient.
Statement 2 tells us that X paid 4.8% and gives us no info on the top 6. Since the prompt tells us the top 6 accounted for 67.8% lets just assume they were all evenly distributed that would make X at 4.8% not included. If however the top 2 accounted for something like 57.8% then X could be included since the remaining 4 would account for 10% of which we now X is at 4.8%. So insuff.

Together we know that the top 4 are 56%. This leaves 11.8% for the remaining two. If the two are evenly distributed then X wouldn't be included. However, if the remaining 2 are not evenly distributed than X would be included. So insuff.

Intern
Joined: 31 Oct 2011
Posts: 22
Location: United Arab Emirates
GMAT 1: 700 Q45 V40
GPA: 3.41
Followers: 0

Kudos [?]: 10 [0], given: 26

Re: part 2 of DS questions that stumped me from GMATPrep2 [#permalink]  09 Dec 2011, 07:02
thanks
Re: part 2 of DS questions that stumped me from GMATPrep2   [#permalink] 09 Dec 2011, 07:02
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