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According to a recent magazine article, of those office employees who

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Re: According to a recent magazine article, of those office employees who [#permalink]

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noboru wrote:
According to a recent magazine article, of those office employees who typically work 8 hours at the office each day but sometimes say that they will work at home on a particular day, 25 percent actually work less than one hour. At the same time, over 90 percent of those same office employees believe they are more productive working at home than working in their office.

The statements above, if true, best support which of the following conclusions about the office employees discussed in the article?

a On average, the office employees working at home for a day work fewer hours than office employees working at the office.
b 10 percent of the office employees are less productive working from home than working in their office.
c At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked.
d At least 25 percent of the office employees can complete the same amount of work in one hour at home as in 8 hours at the office.
e Some of the office employees make statements regarding their productivity that are not in fact true.


This question uses a very typical method to build a question - paradox.

The form is:
A mentions X
B mentions Y
But, X and Y are different. There must be a GAP between X and Y

The question is built in a very tricky way. First, you need to understand what "productive" is. Productive is working more time OR less time?. In the scope of this question, Productive means employees work MORE time at home than at office.

In short, we have a formula:
MORE TIME = MORE PRODUCTIVE
LESS TIME = LESS PRODUCTIVE


There are two cases.

Case #1: 25 percent of employee actually work less than one hour. It means they work LESS productive at home than at office. ==> 75% of employee work MORE productive

Case #2: over 90 percent of those same office employees believe they are MORE productive working at home than at office.

The difference between 90% and 75% is only explained by the fact that at least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked.

Note: "do not define productivity exclusively in terms of the number of hours worked" means some employee do not understand (more time = more productive) OR (less time = more productive). That's why they made up a difference in their responses. This is the ultimate idea the question wants to convey.

Option C says: At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked. ==> CORRECT.
Note: We have "At least" because case #2 says "over 90%...)

Please see file attached to understand the answer more clearly.

Hope it helps.
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 26 Oct 2014, 10:20
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Answer is C. This of it this way: 90% think that it's not the hours you worked, it's the quality of work that matters. Answer C rephrases this in a different way - more than 10% or in other wording "at least 15% believe that ...". All other answers do not support the conclusion.
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 17 Apr 2015, 00:09
[quote="souvik101990"]According to a recent magazine article, of those office employees who typically work 8 hours at the office each day but sometimes say that they will work at home on a particular day, 25 percent actually work less than one hour. At the same time, over 90 percent of those same office employees believe they are more productive working at home than working in their office. The statements above, if true, best support which of the following conclusions about the office employees discussed in the article?

A. On average, the office employees working at home for a day work fewer hours than office employees working at the office.
B. 10 percent of the office employees are less productive working from home than working in their office.
C. At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked.
D. At least 25 percent of the office employees can complete the same amount of work in one hour at home as in 8 hours at the office.
E. Some of the office employees make statements regarding their productivity that are not in fact true.
=quote]

Summary of article: Employees work at office as well at home. Out of which 25% work for less than an hour and 90% believe working at home is productive.

We need to conclude the article and based on the above summary, i see that we can remove options A, B and E as they are based on assumptions.

In Option D it says that 25% percent of employees finish their work in one hour as in 8 hours at office. Then the work is not worth 8 hours at office. This is more of an inference rather than a conclusion.

Option C: 90% believe working at home and 75% work for more than 1 hour. If i subtract i get 15% employees who work for less than one hour. This 15% do not believe the productivity in terms of hours worked. This is a conclusion which suits better.

Option C
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 12 May 2015, 05:59
Quant Approach justifies the OA ,but how to decide when to go for this Quant strategy an when not.
In general approach option C "At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked" seems to be lame or out of context.

Experts please help
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 23 May 2015, 10:14
Imho this is a poor question. For one, the wording is confusing: 90% of those same office employees SHOULD refer to the 25% who work less than 1 hr from home (based on the proximity of the pronoun to the noun).
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 24 May 2015, 05:15
chiraagb wrote:
My doubt here is as follows:

According to a recent magazine article, of those office employees WHO typically work 8 hours at the office each day but sometimes say that they will work at home on a particular day.

Doesn't this mean that the office employees being discussed in the first place is NOT ALL office employees but only those who typically work 8 hours at the office each day but sometimes say they will work at home on a particular day. What about those office employees who work at the office each day but never mention about working at home on a particular day?


I faced this questions today. And this was exactly my doubt when I saw the answer. It seems nobody has got an answer to this. Everybody is just assuming that all the employees in the organization "work 8 hours at the office each day but sometimes say that they will work at home on a particular day".

It is hilarious that nobody on this forum has thought about this. :roll:

Have u been able to justify C as the correct answer?
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 24 May 2015, 05:21
seekmba wrote:
There are 100 employees in company X

When working from home, 25% employees work less than 1 hour = 25 employees work less than 1 hour

over 90% of the employees believe they are productive = 90 or more than 90 (may be 90, 93, 94, 96 or 97 etc.) employees believe they are productive

Now suppose there are exactly 90 employees who believe they are productive and 10 employees believe they are not productive. And in the worst case, these 10 employees are from the group of 25 who work for 1 hour. That still leaves 15 employees to believe that they are productive even when they work for 1 hour.

And C exactly says that

At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked.


My doubt here is as follows:

According to a recent magazine article, of those office employees WHO typically work 8 hours at the office each day but sometimes say that they will work at home on a particular day.

Doesn't this mean that the office employees being discussed in the first place is NOT ALL office employees but only those who typically work 8 hours at the office each day but sometimes say they will work at home on a particular day. What about those office employees who work at the office each day but never mention about working at home on a particular day?

I am baffled to see that nobody has an answer to this doubt. :lol:
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 18 Jul 2016, 07:19
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Ruchita1907 wrote:
How can 90 and 25 be added.. I think this can not be done as its not the same..


Hi, Ruchita1907

Let's imagine that we have 100 people in the office.
25 of them work less than 1 hour
and 90 believe that they are more productive at home

Is this possible situation? Yes, because some of these people belong to the both groups. How many?
90 + 25 - 100 = 15
so 15 people work less than 1 hour and think that they more productive at home.
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 02 Dec 2016, 14:34
souvik101990 wrote:
According to a recent magazine article, of those office employees who typically work 8 hours at the office each day but sometimes say that they will work at home on a particular day, 25 percent actually work less than one hour. At the same time, over 90 percent of those same office employees believe they are more productive working at home than working in their office. The statements above, if true, best support which of the following conclusions about the office employees discussed in the article?

A. On average, the office employees working at home for a day work fewer hours than office employees working at the office.
B. 10 percent of the office employees are less productive working from home than working in their office.
C. At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked.
D. At least 25 percent of the office employees can complete the same amount of work in one hour at home as in 8 hours at the office.
E. Some of the office employees make statements regarding their productivity that are not in fact true.


I could easily eliminate A/B/E.
between C and D...i thought that at least 25 (means 25+++) can complete the same amount of work in one hour...but we have actually 25% who work less than one hour at home..so D is out...C stands.
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 06 Jan 2017, 06:14
kannn wrote:
According to a recent magazine article, of those office employees who typically work 8 hours at the office each day but sometimes say that they will work at home on a particular day, 25 percent actually work less than one hour. At the same time, over 90 percent of those same office employees believe they are more productive working at home than working in their office.

The statements above, if true, best support which of the following conclusions about the office employees discussed in the article?

a) On average, the office employees working at home for a day work fewer hours than office employees working at the office.
b) 10 percent of the office employees are less productive working from home than working in their office.
c) At least 15 percent of the office employees do not define productivity exclusively in terms of the number of hours worked.
d) At least 25 percent of the office employees can complete the same amount of work in one hour at home as in 8 hours at the office.
e) Some of the office employees make statements regarding their productivity that are not in fact true.



The passage presents information about what office employees who work 8-hour days and who have worked at home told a certain magazine. The first piece of
information is about what some of those office employees actually do: 25 percent of office employees actually work less than an hour on days that they work at
home. The second piece of information is about what some of those office employees believe: 90 percent believe that they are more productive working at
home than at the office. A proper GMAT conclusion must be provable by those two pieces of information.

A . The passage only provides information about the working hours of 25 percent of the office employees. The passage does not provide any information regarding
the working hours of the other 75 percent, hence, it is not possible to conclude anything about the office employees on average. For example, it is possible that
the other 75 percent of the office employees work 14 hour days when working from home. It is also possible that they work 6 hour days when working from home.

B. The passage provides no information about the actual productivity of any of the office employees. It only provides information about what the office
employees believe about their productivity.

C. 90 percent of the office employees believe that they are more productive at home than at work. At the same time, 25 percent of the office
employees actually work fewer hours when they work at home than when they work at the office. The overlap between these two groups is at least 15 percent of
all of the office employees. This group of employees believes that they are more productive at home than at work and yet this group actually works fewer hours at
home than at work. Thus, these employees must not define productivity exclusively in terms of the number of hours worked. - Correct

D. The passage discusses the actual work hours of 25 percent of the office employees. Then it describes the beliefs of 90 percent of office employees
regarding their productivity. First, there is no necessary link between an individual's beliefs about his or her productivity and that individual’s actual
productivity; hence, no conclusion can be made regarding actual productivity from the information about beliefs. Second, the number of hours worked alone is
not an indication of productivity; it is possible, for example, that an employee who works 1 hour is more productive in terms of work done per hour than when he
works 8 hours and yet that employee might still accomplish more total work when working 8 hours. Therefore, it is not possible to conclude anything regarding
productivity for any of the office employees.

E. The fact that 90 percent of the office employees believe they are more productive at home than at work does not necessarily contradict the fact that 25
percent of the office employees work fewer hours at home than at work. It is possible to work fewer hours and still be more productive.

Answer C
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 04 May 2017, 09:30
Can anyone tell me the differences among Must be true, inference and Conclusion questions.

The above answer is C - while others are wrong- In D - Work is not productivity so eliminate.
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Re: According to a recent magazine article, of those office employees who [#permalink]

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New post 28 May 2017, 00:36
The passage presents information about what office employees who work 8-hour days and who have worked at home told a certain magazine. The first piece of information is about what some of those office employees actually do: 25 percent of office employees actually work less than an hour on days that they work at home. The second piece of information is about what some of those office employees believe: 90 percent believe that they are more productive working at home than at the office. A proper GMAT conclusion must be provable by those two pieces of information.

(A) The passage only provides information about the working hours of 25 percent of the office employees. The passage does not provide any information regarding the working hours of the other 75 percent, hence, it is not possible to conclude anything about the office employees on average. For example, it is possible that the other 75 percent of the office employees work 14 hour days when working from home. It is also possible that they work 6 hour days when working from home.

(B) The passage provides no information about the actual productivity of any of the office employees. It only provides information about what the office employees believe about their productivity.

(C) CORRECT. 90 percent of the office employees believe that they are more productive at home than at work. At the same time, 25 percent of the office employees actually work fewer hours when they work at home than when they work at the office. The overlap between these two groups is at least 15 percent of all of the office employees. This group of employees believes that they are more productive at home than at work and yet this group actually works fewer hours at home than at work. Thus, these employees must not define productivity exclusively in terms of the number of hours worked.

(D) The passage discusses the actual work hours of 25 percent of the office employees. Then it describes the beliefs of 90 percent of office employees regarding their productivity. First, there is no necessary link between an individual's beliefs about his or her productivity and that individual’s actual productivity; hence, no conclusion can be made regarding actual productivity from the information about beliefs. Second, the number of hours worked alone is not an indication of productivity; it is possible, for example, that an employee who works 1 hour is more productive in terms of work done per hour than when he works 8 hours and yet that employee might still accomplish more total work when working 8 hours. Therefore, it is not possible to conclude anything regarding productivity for any of the office employees.

(E) The fact that 90 percent of the office employees believe they are more productive at home than at work does not necessarily contradict the fact that 25 percent of the office employees work fewer hours at home than at work. It is possible to work fewer hours and still be more productive.
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Re: According to a recent magazine article, of those office employees who   [#permalink] 28 May 2017, 00:36

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