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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.
[Reveal] Spoiler: OA

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Last edited by hazelnut on 26 Oct 2017, 07:23, edited 3 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, 15:20
any good explanation is much welcomed !
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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 09 Dec 2014, 00:33
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clipea12 wrote:
any good explanation is much welcomed !


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, 20:13
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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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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, 18:55
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 14 Sep 2016, 07:24
Yes, Even i did the same...
Thanks for confirming...
8-)

believer700 wrote:
clipea12 wrote:
any good explanation is much welcomed !


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 14 Sep 2016, 07:31
My SHot



80 89
--------------------------------

FISH 100X 104.5X
POULTRY 100Y 109Y
POPULATION 100 106

-------------------------------

A -- TALKS ABOUT "PROFIT".wE ARE GIVEN INFORMATION ABOUT "QUANTITY/profit" ONLY
SO CANT COMMENT ON "profit"

B -- NO WAY..!

C -- CANT COMPARE 104.5 X WITH 109Y < DONT KNW VALUE OF X /Y>

D --> SAME PERSON CAN CONSUME MORE.so VSo cant comment INdividually

E --> 104.5 X < 100X < OA > !
----- -----
106 100

clipea12 wrote:
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Re: From 1980 to 1989, total consumption of fish in the country of Jurania [#permalink]

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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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"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 31 Mar 2017, 19:52
POE
works like a Wizard stick in your hand with Meteor shower spell to arrive at the right answer.
IMO its 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 15 Oct 2017, 04:29
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.


The GMAT does not expect you to necessarily know economic terms but this answer can be arrived at through POE.

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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, 06:42
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] 20 Oct 2017, 06:42
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