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From 1980 to 1989, total consumption of fish in the country of Jurania

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From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?


(A) During the 1980s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.

(B) For people who immigrated to Jurania during the 1980s, fish was less likely to be a major part of their diet than was poultry.

(C) In 1989 Juranians consumed twice as much poultry as fish.

(D) For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980s.

(E) Per capita consumption of fish in Jurania was lower in 1989 than in 1980.


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Originally posted by AdmitJA on 21 Nov 2014, 06:38.
Last edited by Bunuel on 23 Jan 2019, 05:10, edited 4 times in total.
Edited the question.
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 08 Dec 2014, 23:33
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Take the population to be 100
Fish - 100
and
Poultry consumption also as 100

So after Increase
Population in 1989 - 106
Fish- 104.5

and
poultry 109

So per capita for fish consumption in 1980 was 100/100 = 1
in
1989 it becomes 104.5/106 <1

So fish consumption decreases.

Hope this helps :)
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 07 Sep 2015, 19:13
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Information that we have.

Delta in Consumption of Fish = 4.5%
Delta in Consumption of Poultry = 9%
Delta in Population = 9 %


distracting information : Migrants ..


A. During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
This has not been discussed anywhere - Out of scope

B. For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.
Hmm Attractive, but where in entire argument, Choice of immigrated crowd is discussed - Isn't it wrong to say about the choice, when it is not even discussed - Incorrect

C. In 1989 Juranians consumed twice as much poultry as fish.
Only percentage change is given, From percentage change we cannot derive Actual numbers. - Incorrect

D. For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.
Significant or not, not sure but it was part of diet - Might be true - Incorrect

E. Per capita consumption of fish in Jurania was lower in 1989 than in 1980.

Per capita consumption = Total Consumption/No of people.

E says, since the rate of increase of the denominator is higher than the rate of increase of the numerator, we will have a resulting decrease in per-capita consumption.
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 28 Oct 2015, 19:18
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A.During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
Profits have not been discussed .Need not be true.
B.For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.
It might look an attractive trap answer . But this need not necessarily be true as the percentage increase needn't be attributed
to the entire migrant population . There is also a possibility that a major part of the percentage increase was due to more consumption by the natives.
C.In 1989 Juranians consumed twice as much poultry as fish.
Only percentage change is given . Deriving actual numbers from percentage is a strech.
D.For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.
Needn't be true . The percentage increase might be attributed to a fraction of a population.
E.Per capita consumption of fish in Jurania was lower in 1989 than in 1980.
Since , population increased by 6%
and fish consumption by 4.5 %
This has to be true
Per captia consumption of fish = Total consumption of fish/ Total population

Answer E
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 14 Mar 2016, 17:55
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AdmitJA wrote:
From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

A. During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
B. For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.
C. In 1989 Juranians consumed twice as much poultry as fish.
D. For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.
E. Per capita consumption of fish in Jurania was lower in 1989 than in 1980.


I could eliminate all but B and E. picked E in the end.
A - profits = revenue - costs. we know revenue increased, but we do not know anything about the costs. so out.
B - most of the increase of population is from immigration. these people consumed more poultry. this might be true, or might not. what if during 1980 to 1989 poultry became very popular as a food? out.
C - we cannot conclude that. the fact that the percent increase of poultry was twice the percent increase of fish does not mean that the poultry was consumed twice as much as fish.
suppose 100 fish and 100 poultry was consumed. at the end of 1989 = 104.5 fish and 109 poultry. as we can see, this one doesn't even make sense.
D - no new relevant information.
E - yes, absolutely. for ex. consumption of fish in 1980 was 1 fish/person. so we had 100 fish for 100 people. in 1989 = we had 106 people, and only 104.5 fish consumed. thus, the consumption of fish per capita decreased.
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 15 Sep 2016, 01:56
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A. During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.

We don't know anything about price changes to infer about profits

B. For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.

It is possible that all migrants preferred fish or poultry, passage doesn't restrict on any of this possibilities.

C. In 1989 Juranians consumed twice as much poultry as fish.

Can not infer anything about amounts because have only proportions

D. For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.

It is possible that both poultry and fish have only 1% of Juranians diet, passage does not restrict on that. -> Can't infer that

E. Per capita consumption of fish in Jurania was lower in 1989 than in 1980.

Let Q be Consuption of fish and P be Juranian population

Q80/P80; Q89/P89=1.045*Q80/1.09*Q80, which is lower than Q80/P80 => E is correct.
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 22 Sep 2016, 05:35
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"From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

A. During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
B. For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.
C. In 1989 Juranians consumed twice as much poultry as fish.
D. For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.
E. Per capita consumption of fish in Jurania was lower in 1989 than in 1980."

Data:
- Fish Cons. +4.5 %
- Poul. Cons +9.0 %
- Total Pop. 6%, partly due to imigration

Meaning:
If the the consumption grew by 4.5% and the total population grew by 6% - this means less % people are consuming the fish.

Example: lets say we have 10 people, and 3 people consume fish.
if in 1 year we have 40 people and 4 people are consuming fish, the % fish consumers has decline.

The correct answer E, actualy talk about the (% of people) who consume fish, since it means (# of fish consumers)/(# of people), and since the % change of fish consumers is smaller than the % change of the # of people - we are actualy make the nominator smaller and the denominator bigger- hence E is correct.
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 20 Oct 2017, 05:42
AdmitJA wrote:
From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

(A) During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.

(B) For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.

(C) In 1989 Juranians consumed twice as much poultry as fish.

(D) For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.

(E) Per capita consumption of fish in Jurania was lower in 1989 than in 1980.


F = consumption of fish
P = population of Jurania

\(\frac{F_{89} - F_{80}}{F_{80}}=0.045\)

\(F_{89} = 1.045*F_{80}\)

\(\frac{P_{89} - P_{80}}{P_{80}}=0.06\)

\(P_{89} = 1.06*P_{80}\)

consumption of fish per capita

\(= \frac{F_{89}}{P_{89}}\)

\(= \frac{1.045*F_{80}}{1.06*P_{80}}\)

\(= 0.9587*\frac{F_{80}}{P_{80}}\)
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 19 Feb 2018, 09:57
Question Type: Inference

Argument: 1980 to 1989 --> Fish consumption increased by 4.5%
Consumption of poultry products increased by 9%
Population of Jurania increased by 6%

(A) During the 1980s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish. - Out of scope. Profits are not discussed in the argument.

(B) For people who immigrated to Jurania during the 1980s, fish was less likely to be a major part of their diet than was poultry. - We cannot come to this conclusion as there is a possibility that the immigrants majorly consumed fish and the rest of the population consumed poultry products.

(C) In 1989 Juranians consumed twice as much poultry as fish. - Double the percentage doesn't mean double the number.

(D) For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980s. - We do not know whether they were a regular part of their diet in 1980s. We know only about the increase in percentage.

(E) Per capita consumption of fish in Jurania was lower in 1989 than in 1980. - Correct.

Answer: E
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 04 Apr 2018, 22:48
Quote:
From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

Quote:
(A) During the 1980s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.

We don't know about profits and wholesale distribution.
Quote:
(B) For people who immigrated to Jurania during the 1980s, fish was less likely to be a major part of their diet than was poultry.

There is no comparison made about the dietary habits.
Quote:
(C) In 1989 Juranians consumed twice as much poultry as fish.

No such inference can be drawn.
Quote:
(D) For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980s.

Regular diet is not discussed.
Quote:
(E) Per capita consumption of fish in Jurania was lower in 1989 than in 1980.

If population has has certainly impacted because population has increased from 1980 to 1989. Correct

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From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 02 Oct 2019, 18:15
AdmitJA wrote:
From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent. During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

(A) During the 1980s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
We don't know anything about actual value of profits.

(B) For people who immigrated to Jurania during the 1980s, fish was less likely to be a major part of their diet than was poultry.
Could be true or not, introduces new information

(C) In 1989 Juranians consumed twice as much poultry as fish.
We don't know anything about actual amounts of fish/poultry.

(D) For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980s.
Could be true or not, maybe it's a food only for the highest income bracket.

(E) Per capita consumption of fish in Jurania was lower in 1989 than in 1980.
This MUST be true because the increase in people was 6% while the increase in fish was only 4.5%

Notice that the wrong ACs either talk about actual values or mentioned unknown information. The stem only gives us a proportion. Anything with values only is wrong, and the other answers related to proportions talk about it in terms of factors not mentioned in the stem.
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania  [#permalink]

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New post 15 Oct 2019, 22:15
believer700 wrote:
Take the population to be 100
Fish - 100
and
Poultry consumption also as 100

So after Increase
Population in 1989 - 106
Fish- 104.5

and
poultry 109

So per capita for fish consumption in 1980 was 100/100 = 1
in
1989 it becomes 104.5/106 <1

So fish consumption decreases.

Hope this helps :)





I guess tgere is no where defined that both fish and poultry consumption are same intially so this can be subjective if we go from calculation perspective

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Re: From 1980 to 1989, total consumption of fish in the country of Jurania   [#permalink] 15 Oct 2019, 22:15
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