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In Eastland, from 2000 to 2005, the total consumption of

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In Eastland, from 2000 to 2005, the total consumption of [#permalink]

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New post 15 Aug 2009, 02:10
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In Eastland, from 2000 to 2005, the total consumption of fish increased by 4.5 percent, and the total consumption of poultry products increased by 9.0 percent. During this time, the population of Eastland increased by 6 percent, in part due to new arrivals from surrounding areas.
Which of the following, if true, can one infer based on the statements above?

A) For new arrivals to Eastland between 2000 and 2005, fish was less likely to be a major part of families’ diet than was poultry.

B) In 2005, the residents of Eastland consumed twice as much poultry as fish.

C) The per capita consumption of poultry in Eastland was higher in 2005 than it was in 2000.

D) Between 2000 and 2005, both fish and poultry products were a regular part of the diet of a significant proportion of Eastland residents.

E) Between 2000 and 2005, the profits of wholesale distributors of poultry products increased at a greater rate than did the profits of wholesale distributors of fish.

OA:

EXPLAIN PLEASE....
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Re: consumption Eastland [#permalink]

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New post 15 Aug 2009, 04:54
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A. is incorrect, since we only have info about the total consumption of poultry/fish. What if two families ate something like 2 tons of chicken and 1000 families ate something like 2 pounds of fish every day?

B. the passage does not provide info about the quantities of fish/poultry consumed, it just points out their respective gains.

C. is correct. Look at it mathematically:
population in 2000 = x
population in 2005 = 106% *x

poultry in 2000 = y
poultry in 2005 = 109% *y

per capita poultry consumption in 2000 = y/x
per capita poultry consumption in 2005 = 109%y/106%x = y/x * 109/106 > y/x

D. no info to establish this

E. profits are not discussed here. Indeed, the amount sold was greater, but what if costs increased significantly, say by 20%? Then the profits go down...
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Re: consumption Eastland [#permalink]

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New post 15 Aug 2009, 23:25
nicely explained dana... kudos..
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Re: consumption Eastland [#permalink]

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New post 16 Aug 2009, 22:08
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seldom see such CRs... test on maths..
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Re: consumption Eastland [#permalink]

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New post 17 Aug 2009, 10:12
DanaJ wrote:
A. is incorrect, since we only have info about the total consumption of poultry/fish. What if two families ate something like 2 tons of chicken and 1000 families ate something like 2 pounds of fish every day?

B. the passage does not provide info about the quantities of fish/poultry consumed, it just points out their respective gains.

C. is correct. Look at it mathematically:
population in 2000 = x
population in 2005 = 106% *x

poultry in 2000 = y
poultry in 2005 = 109% *y

per capita poultry consumption in 2000 = y/x
per capita poultry consumption in 2005 = 109%y/106%x = y/x * 109/106 > y/x

D. no info to establish this

E. profits are not discussed here. Indeed, the amount sold was greater, but what if costs increased significantly, say by 20%? Then the profits go down...


nice explanation. thanks +1 for ya.
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Re: In Eastland, from 2000 to 2005, the total consumption of [#permalink]

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New post 24 Jan 2012, 21:35
at first i thought it was D, but looking a it again we can see that the % increase in population is lower than the % increase in the consumption of poultry so we should see an increase in poultry consumption per capita.
Also, the stimulus only talks about percentages never actual numbers so our answer should reflect only based on percentages not actual figures.
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Re: In Eastland, from 2000 to 2005, the total consumption of [#permalink]

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New post 28 Jan 2012, 23:08
In Eastland, from 2000 to 2005, the total consumption of fish increased by 4.5 percent, and the total consumption of poultry products increased by 9.0 percent. During this time, the population of Eastland increased by 6 percent, in part due to new arrivals from surrounding areas.
Which of the following, if true, can one infer based on the statements above?

A) For new arrivals to Eastland between 2000 and 2005, fish was less likely to be a major part of families’ diet than was poultry. Though percentage increase in Eastland's population (6%) is higher than percentage increase in fish consumption (4.5%), it is possible that some of existing population have reduced consumption of fish despite higher/same consumption of fish from new entrants in Eastland. Incorrect

B) In 2005, the residents of Eastland consumed twice as much poultry as fish.nothing in the stimulus state about relative amount of fish and poultry consumption. It states about percent increase in consumption which does not translate directly into amount. Incorrect

C) The per capita consumption of poultry in Eastland was higher in 2005 than it was in 2000. Suppose in year 2000, consumption of poultary was X while population was Y, thus percapita consumption was Y/X. Now in 2005 , Poultry consumption increased by 9 percent, thus amount poultry consumption was 1.09 X. Similarly, population increased by 6%, therefore new population is 1.06 Y. Combining these two data, in 2005, per capita consumption is 1.09X/1.06 Y > X/Y (IN 2000). IMO Correct answer

D) Between 2000 and 2005, both fish and poultry products were a regular part of the diet of a significant proportion of Eastland residents.nothing in the stimulus states this fact. Incorrect

E) Between 2000 and 2005, the profits of wholesale distributors of poultry products increased at a greater rate than did the profits of wholesale distributors of fish.out of scope. stimulus doesn't states profit anywhere.Incorect
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Re: In Eastland, from 2000 to 2005, the total consumption of [#permalink]

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New post 01 Aug 2014, 00:08
C
Total consumption of poultry increase 9% > population increase 6%
If you divide two number, total consumption/ population = per capita consumption has to increase since 9% > 6%
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Re: In Eastland, from 2000 to 2005, the total consumption of [#permalink]

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New post 07 Aug 2014, 08:52
Superb explanation DanaJ!

Really helped to crack the inference question.

This is how maths is used in inference CR.
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Re: In Eastland, from 2000 to 2005, the total consumption of [#permalink]

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New post 20 Sep 2017, 19:55
IMO C

a) we dont know that for sure. what if existing people stopped eating fish and started eating poultry.

b) we cannot infer anything from their amounts.

c) This is true, the per capita consumption of poultry products increased.

d) we cannot infer this.

e) profits is out of problem's scope.
Re: In Eastland, from 2000 to 2005, the total consumption of   [#permalink] 20 Sep 2017, 19:55
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