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# A ten year comparison between the US and the Soviet Union in

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Manager
Affiliations: CFA Level 2
Joined: 05 May 2004
Posts: 248
Location: Hanoi
A ten year comparison between the US and the Soviet Union in  [#permalink]

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14 Jul 2004, 03:44
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Difficulty:

(N/A)

Question Stats:

75% (00:12) correct 25% (06:18) wrong based on 31 sessions

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A ten year comparison between the US and the Soviet Union in terms of crop yields per acre revealed that when only planted acreage is compared, Soviet yields are equal to 68 percent of US yields. When total agricultural acreage (planted acreage plus fallow acreage) is compared, Soviet yield is however 114 percent of US yield.
From above which can be infered:
A. A higher percentage of total agricultural acreage was fallow in US than in the Soviet Union.
B. The US had more fallow acreage than planted acreage
C. Fewer total acres of available agricultural land were fallow in Soviet Union than in the US.
D. The Soviet Union had more planted acreage than fallow acreage.
E. The Soviet Union produced a greater volume of crops than the US produced

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Senior Manager
Joined: 26 Jan 2004
Posts: 384
Location: India

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14 Jul 2004, 03:57
2
(E) it is, rest all cannot be infered.

(A) is wrong, assumes Planted crop in US =100
In USSR = 68.

Total acreage in US = 200 (say)
In USSR = 228

Hence Fallow in US = 100, in USSR = 160
So Fallow percentage in USSR is higher than US
Manager
Joined: 02 Jul 2004
Posts: 212

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14 Jul 2004, 04:04
1
mba, you misunderstood the question

100 and 68 refer to crop yields PER ACRE (OF PLANTED GROUND) not the total crop yield

Your example is invalid. I am 90% sure the answer is A, if I'm right I will explain
Manager
Affiliations: CFA Level 2
Joined: 05 May 2004
Posts: 248
Location: Hanoi

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14 Jul 2004, 04:06
1
Sorry I have no OA for all CR I post here. So please explain.
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"Life is like a box of chocolates, you never know what you'r gonna get"

Manager
Joined: 02 Jul 2004
Posts: 212

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14 Jul 2004, 05:08
1
1
I will give counter-examples to choiced B,C,D, and E

Example 1:

US:
planted acreage(PA)=100
fallow acreage(FA)=100
total acreage(TA)=200
crop per acre of PA = 100
crop per acre of TA = 50
total crop = 100*100 = 200*50 = 10000

USSR:
PA=10
FA=1.93
TA=11.93
crop per acre of PA = 68 [= 68% of US crop per acre of PA]
crop per acre of TA = 57 [= 114% of crop per acre of TA]
total crop = 10*68 = 11.93*57 = 680

This example eliminates choices B and E

Example 2:

US:
planted acreage(PA)=10
fallow acreage(FA)=23.53
total acreage(TA)=33.53
crop per acre of PA = 100
crop per acre of TA = 29.82
total crop = 10*100 = 33.53*29.82 = 1000

USSR:
PA=100
FA=100
TA=200
crop per acre of PA = 68 [= 68% of US crop per acre of PA]
crop per acre of TA = 34 [= 114% of crop per acre of TA]
total crop = 100*68 = 200*34 = 6800

This example eliminates choices C and D
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4145

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14 Jul 2004, 05:09
4
I'm with A
US planted acreage: 100
Soviet planted acreage: 100
US crop yield: 100%
Soviet crop yield: 68%
Total acreage in US(planted+fallow): 200
Total acreage in Soviet(planted+fallow): 120
Total yield US: 100/200 = 50%
Total yield Soviet: 68/120 = 57%
Total Soviet/US yield: 57/50 = 114%
Beware when you are comparing % vs quantity. E is a trap because it uses quantity while the problem is only about percentages.
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Best Regards,

Paul

Senior Manager
Joined: 26 Jan 2004
Posts: 384
Location: India

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14 Jul 2004, 05:52
Got the point!

Need to be more carefull.
Current Student
Joined: 09 May 2017
Posts: 29
Location: United States
GPA: 3.98
Re: A ten year comparison between the US and the Soviet Union in  [#permalink]

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03 Jun 2017, 11:41
GMAT Club Verbal Expert
Joined: 20 Nov 2016
Posts: 253
Re: A ten year comparison between the US and the Soviet Union in  [#permalink]

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10 Jun 2017, 09:17
This is a GRE question, not a GMAT question. For further discussion, please visit: http://greprepclub.com/forum/united-sta ... -1938.html

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: A ten year comparison between the US and the Soviet Union in   [#permalink] 10 Jun 2017, 09:17
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