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The rate of unemployment in Country X is higher than is the rate of

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The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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GST Week 4 Day 1 Economist GMAT Tutor Question 1


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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

B. The population of Country Y is more skilled than the population of Country X.

C. The number of people in Country X is the same as the number of people in Country Y.

D. The size of Country X is the same as that of Country Y.

E. In both countries, the ratio of the number of men to the number of women is the same.

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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 10 May 2018, 06:48
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This problem is fundamentally flawed; you'll never see an assumption problem like it on the official exam.

Assumptions are unstated ideas that are absolutely NECESSARY for an argument to work as given. Keeping this in mind, let's talk about TWO big, big issues with this problem.

__


ISSUE #1: THE OA ISN'T ACTUALLY CORRECT

Choice C is awfully ambitious: it says that the two populations are EXACTLY THE SAME.
Does the argument RELY on that condition?
...Well, no, of course it doesn't.
The argument also works, as Dmitry points out above, if country X has a LARGER population.

...and even "≥" still isn't good enough to be an assumption; there are more possibilities yet (see below).

__


ISSUE #2: THE ••ACTUAL•• ASSUMPTION IS WAY TOO MATH-Y FOR THE VERBAL SECTION

Let's use "Rx" and "Ry" to denote the two countries' rates of unemployment. (The passage's premise is thus Rx > Ry.)

Let's also use "Px" and "Py" to denote the two countries' populations.

Using this notation, the ACTUAL ASSUMPTION here — i.e., the statement that really MUST be true for the argument to work — is
"Px/Py > Ry/Rx".
(As a useful quant exercise, you should try to work out why THIS is the assumption here. As a hint, if ">" is replaced by "=" then the numbers of unemployed people will be equal.)

There's just no way to state this assumption in language that's sufficiently precise, yet still suitable for the verbal section. So, nope. No way you'll see anything like this.

__


On the other hand — 
With a few tweaks, this problem could be turned into an excellent Data Sufficiency brain-teaser!
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 08 Jun 2017, 09:27
Answer would be C. Straight forward

Use assumption negation on C and the argument falls apart

However if you use assumption negation on B .....if the population of country Y is not more skilled than the population of country X.. Then it does not weaken our conclusion and what if the same jobs in country Y require lower skills as compared to country X

Hope you understand


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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.


Rate of unemployment of country X> Rate of unemployment of country Y

Conclusion: Therefore, NUMBER of unemployed people in country X> NUMBER of unemployed people in country Y

The author is assuming that the comparison between the two countries is valid and the population is same (then only this conclusion can be true).

C
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 08:15
for the number of unemployed people in Country Y to be greater than the number of unemployed people in Country X, the population of both countries should be the same...

A. not useful

B. we're concerned with number of unemployed people and not unskilled people

D. irrelevant

E. irrelevant

hence answer is C.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 08:30
souvik101990 wrote:

GST Week 4 Day 1 Economist GMAT Tutor Question 1


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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

B. The population of Country Y is more skilled than the population of Country X.

C. The number of people in Country X is the same as the number of people in Country Y.

D. The size of Country X is the same as that of Country Y.

E. In both countries, the ratio of the number of men to the number of women is the same.


IMO option C. This question is an example of the game GMAT plays between percentages/rates and actual values. Just because the rate of unemployment in X is higher than Y that doesn't mean that the number of unemployed people would also follow same suit.
For this to be the case, the options should speak about the comparison of populations (number) between X and Y and option C does that.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 08:33
souvik101990 wrote:

GST Week 4 Day 1 Economist GMAT Tutor Question 1


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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

B. The population of Country Y is more skilled than the population of Country X.

C. The number of people in Country X is the same as the number of people in Country Y.

D. The size of Country X is the same as that of Country Y.

E. In both countries, the ratio of the number of men to the number of women is the same.


Premise - Rate of unemployment in Country X > Rate of unemployment in Country Y
Conclusion - No. of unemployed people in country X > No. of unemployed people in country Y
Assumption - Population of X > or = Population of Y
Answer choice C states that - The number of people in Country X is the same as the number of people in Country Y - which is the correct choice.
Answer C.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 08:55
Option C.
Rate is Unemployed People/Total Population.
Rate of country X is higher than rate of country Y. If it is given that Number of Unemployed people is also higher in X than Y, it MUST be taken into consideration that Total Population of Country X and Y is equal.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 09:03
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GST Week 4 Day 1 Economist GMAT Tutor Question 1


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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?


It's more like a math question. Based on given unemployed %, for argument to conclude that "no. of unemployed people in X" > "no. of unemployed in people Y" we should have same total no. of people/population of country X & Y.

A. The unemployment rate in Country X is 15%. - Incorrect. We don't know rate of Y.

B. The population of Country Y is more skilled than the population of Country X. - Incorrect. Not concerned with skilled labor.

C. The number of people in Country X is the same as the number of people in Country Y. - Correct. As explained above.

D. The size of Country X is the same as that of Country Y. - Incorrect. Size of country doesn't matter at all.

E. In both countries, the ratio of the number of men to the number of women is the same. - Incorrect. Ratio can be same but total will be different.

Answer: (C).
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 10:39
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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.-- Irrelevant - the specific percentage is not relevant

B. The population of Country Y is more skilled than the population of Country X. - Irrelevant

C. The number of people in Country X is the same as the number of people in Country Y. - Correct - but I think this need not be true for the conclusion to be valid.

D. The size of Country X is the same as that of Country Y.- Irrelevant

E. In both countries, the ratio of the number of men to the number of women is the same.- Irrelevant


Other options are clearly incorrect; I chose C by POE but in my opinion, the argument does not break down on negating option C. The argument will be true even if the number of people in Country X is more than that in Country Y. C is more like a strengthener.

The number of people in Country X is not less(or maybe significantly less) than the number of people in Country Y -- this might be a better assumption?

AjiteshArun , GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert -- please enlighten
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 10:44
Skywalker18 wrote:
The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.-- Irrelevant - the specific percentage is not relevant

B. The population of Country Y is more skilled than the population of Country X. - Irrelevant

C. The number of people in Country X is the same as the number of people in Country Y. - Correct - but I think this need not be true for the conclusion to be valid.

D. The size of Country X is the same as that of Country Y.- Irrelevant

E. In both countries, the ratio of the number of men to the number of women is the same.- Irrelevant


Other options are clearly incorrect; I chose C by POE but in my opinion, the argument does not break down on negating option C. The argument will be true even if the number of people in Country X is more than that in Country Y. C is more like a strengthener.

The number of people in Country X is not less(or maybe significantly less) than the number of people in Country Y -- this might be a better assumption?

AjiteshArun , GMATNinja , mikemcgarry , egmat , sayantanc2k, RonPurewal , DmitryFarber , MagooshExpert -- please enlighten


You are correct. Argument would hold even if Population in X is higher than in Y. Its just a matter of selecting the best option. Hence the option C.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 01 May 2018, 11:35
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Skywalker18 is definitely right. Answer choice C should say something like "as least as great as." As it stands, the answer choice is not valid. Yes, we want the best answer out of those available, but in a real GMAT question, the correct answer will actually be correct. :)
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 02 May 2018, 00:45
souvik101990 wrote:

GST Week 4 Day 1 Economist GMAT Tutor Question 1


Give your best shot at writing a top notch application and you will have the chance to win GMAT Club tests daily and GMAT Basic Prep Plan by The Economist GMAT Tutor. See the GMAT Spring Training Thread for all details


The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

B. The population of Country Y is more skilled than the population of Country X.

C. The number of people in Country X is the same as the number of people in Country Y.

D. The size of Country X is the same as that of Country Y.

E. In both countries, the ratio of the number of men to the number of women is the same.


The correct answer is option C

This is an easy question but is good question to understand the basic concept "% of something is not the same as # of something". Once you know this, the question is easy to solve:
A. This option talks about country A talks percentage of country X alone. Doesn't help with the #. Hence irrelevant
B. There is no mention of skill in the argument. It is possible with lower skill there is higher employment. Hence irrelevant
C. Since % unemployment is \(\frac{# of unemployed}{total population}\), if the population of both the countries is same then the # of unemployed become comparable. Hence an acceptable answer.
D. Size of the countries is irrelevant
E. Men/Women classification is out of scope

Hence it is option C.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 04 May 2018, 08:35
The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.
B. The population of Country Y is more skilled than the population of Country X.
C. The number of people in Country X is the same as the number of people in Country Y.
D. The size of Country X is the same as that of Country Y.
E. In both countries, the ratio of the number of men to the number of women is the same.


Explanation:
so to strengthen the argument, the total number of people in both the countries should be same.
rate of unemployment= number of people unemployed/Total number of people
A. Irrelevant. Knowing the unemployment rate of any single country or even both the countries won't tell us anything about the number of unemployed people.
B. Irrelevant. Again doesn't tell us the number of people of the respective countries
C. Correct. that's what we need to strengthen the argument
D. Irrelevant. we need number of people not the size of the country.
E. Irrelevant. Ratio of men to women has nothing to do with the ratio of unemployment.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 04 May 2018, 08:37
Let us understand the passage first

Line-1 -> Rate of unemployment in Country X > Rate of unemployment in country Y

Line-2/Conclusion -> So, number of unemployed people in country X > that of Y


Pre-think

Rate depends on 2-factors

Number of unemployed person/Total number of people

Conclusion says that number of unemployed people in country X is greater, so to make this (Number of unemployed person/Total number of people) greater the denominator should be equal in both cases, which is stated in option C.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 04 May 2018, 20:19
The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

We do not know the unemployment rate in Country Y. Even if we knew it wont matter unless we know the population details. This is so because GMAT tricks by using percent to denote numbers and vice-versa. It's important to understand that it's not always the case that a higher percentage means a higher number.

B. The population of Country Y is more skilled than the population of Country X.

We are not dealing whether Y population is more skilled or not. This cannot be an assumption because our conclusion is stating something else from the logic deduced from the premises. Assumption is a unstated premise which feels the gap between logic. Hence this option has no bearing on conclusion.

C. The number of people in Country X is the same as the number of people in Country Y.

Looks correct . Because if the population is same then higher percentage rate means higher in number.
Take population in both countries = 1000
Assume Unemployment rate for X = 40% = 400 people
Assume Unemployment rate for Y = 15% = 150 people
Hence correct.

D. The size of Country X is the same as that of Country Y.

Size with respect to what ? Population or geographical size or density etc.. This is too vague Hence cannot be the correct answer. We need an option which cannot be broken down or falsified. This is because an assumption is a necessary condition for the argument.

E. In both countries, the ratio of the number of men to the number of women is the same.

Ratio are tricky. say the ratio is 4:3 for both the countries . Which is also same as 8:6 which is also same as 12:9. We cannot logically deduce the actual population and hence this cannot be an assumption.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 05 May 2018, 06:54
souvik101990 wrote:

GST Week 4 Day 1 Economist GMAT Tutor Question 1


Give your best shot at writing a top notch application and you will have the chance to win GMAT Club tests daily and GMAT Basic Prep Plan by The Economist GMAT Tutor. See the GMAT Spring Training Thread for all details


The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

B. The population of Country Y is more skilled than the population of Country X.

C. The number of people in Country X is the same as the number of people in Country Y.

D. The size of Country X is the same as that of Country Y.

E. In both countries, the ratio of the number of men to the number of women is the same.


According to the Q-Stem:
Premise : The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y.
Conclusion : Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.

Analysis :
1. This is a comparison of a characteristics between 2 countries . Hence, we need 2 data points (each for each country) at all stages of comparison.
2. The Q is based on a pure mathematical relation . \(number of unemployed people(U)\) = \(rate of unemployment(R) * total population(T)\)
E.g, say rate of unemployment = 20 % & total population =1000 ; then number of unemployed people = \(\frac{20}{100}*1000\) = 200
Thus we have information for rate of unemployment(R) and we are trying to conclude on number of unemployed people(U) Thus we need information about total population(T).

Lets move on to the answer choices.

Option A: Incorrect : We have information for only country X( single data point)

Option B: Incorrect : Population of country Y is more skilled than country X......... will not lead us to total population of each country.

Option C: Correct : This option mentions : The number of people in Country X is the same as the number of people in Country Y. Thus if we now consider the expression U=R*T, when T is same higher R will translate to higher U.

Option D: Incorrect : The size of each country will definitely not lead us to total population of each country.

Option E: Incorrect : Instead of total population this option says the ratio of the number of men to the number of women in each countruy is same . Thus not leading to total population of each country.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 14 May 2018, 11:54
The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.
Let's first understand what is rate of unemployment in general= Total unemployment/Total population eligible to work(Organized+unorganized)
Pre-thinking:
Now if we see here, for X it would be Unemployment(X)=Total Unemployed people(X)/Total Labor(X) and similarly for Y-->
Unemployment(Y)=Total Unemployed people(Y)/Total Labor(Y) . Now, as per the premise Unemployment(X)>Unemployment(Y) and as per the conclusion Total Unemployed people(X)>Total Unemployed people(Y).

What can we say for denominator then? Total Labor(X)<= Total Labor(Y) i.e. author's assumption might be one of the two cases 1)Total Labor(X)= Total Labor(Y) or Total 2)Labor(X)<Total Labor(Y)


Let's evaluate the options now-

Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.-- Incorrect based on our pre-thinking. Nonsensical - Incorrect assumption.

B. The population of Country Y is more skilled than the population of Country X.-- Irrelevant. We are being asked about unemployment not skilled labor

C. The number of people in Country X is the same as the number of people in Country Y.--Matches our pre-thinking. Hold on. Although this assumption assumes that all population is labor force(No children etc.)

D. The size of Country X is the same as that of Country Y.Irrelevant. Size of country is not determining factor but it's labor force

E. In both countries, the ratio of the number of men to the number of women is the same.-- Irrelevant


Hence it appears C is the correct choice. Let's do negation test to cross check. #People(X) is not same #people in Y, i.e X>Y the conclusion will not hold true. hence this is our answer(Although, we can have one more case X<Y, but since option C matches with one of our prethinking condition i deliberately did not chose it ). There is a scope of improvement in the answer choice, but certainly this is the best available here.
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Re: The rate of unemployment in Country X is higher than is the rate of  [#permalink]

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New post 27 May 2018, 05:38
souvik101990 wrote:

GST Week 4 Day 1 Economist GMAT Tutor Question 1


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The rate of unemployment in Country X is higher than is the rate of unemployment in Country Y. Therefore, the number of unemployed people in Country X is greater than the number of unemployed people in Country Y is.


Which of the following is an assumption underlying the above conclusion?

A. The unemployment rate in Country X is 15%.

B. The population of Country Y is more skilled than the population of Country X.

C. The number of people in Country X is the same as the number of people in Country Y.

D. The size of Country X is the same as that of Country Y.

E. In both countries, the ratio of the number of men to the number of women is the same.


For making percentage a parameter, we need equal number of members.

Only C makes sense.

A. We don't about Y's %age.

B. Skill level and unemployment are different.

C. Correct.

D. Irrelevant

E. Irrelevant

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Re: The rate of unemployment in Country X is higher than is the rate of   [#permalink] 27 May 2018, 05:38
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The rate of unemployment in Country X is higher than is the rate of

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