It is currently 17 Nov 2017, 14:19

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# The rise in free, do-it-yourself instructions on the

Author Message
TAGS:

### Hide Tags

Director
Joined: 03 Aug 2012
Posts: 899

Kudos [?]: 910 [15], given: 322

Concentration: General Management, General Management
GMAT 1: 630 Q47 V29
GMAT 2: 680 Q50 V32
GPA: 3.7
WE: Information Technology (Investment Banking)
The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

18 Jan 2013, 23:39
15
KUDOS
48
This post was
BOOKMARKED
00:00

Difficulty:

95% (hard)

Question Stats:

21% (01:25) correct 79% (01:41) wrong based on 2355 sessions

### HideShow timer Statistics

The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

(A) The number of people who are not home repair technicians and who have been injured while attempting home repairs has increased.

(B) Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

(C) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

(D) Most free do-it-yourself home repair instructions found on the Internet do not provide enough clear information regarding safety precautions.

(E) As more free do-it-yourself instructions for home repairs are made available on the Internet, home service technicians will suffer more losses in revenue.

Source: Veritas Prep Quiz
Good question it is !!!
[Reveal] Spoiler: OA

_________________

Rgds,
TGC!
_____________________________________________________________________
I Assisted You => KUDOS Please
_____________________________________________________________________________

Kudos [?]: 910 [15], given: 322

 Veritas Prep GMAT Discount Codes Optimus Prep Discount Codes Manhattan GMAT Discount Codes
Current Student
Joined: 28 Apr 2012
Posts: 306

Kudos [?]: 480 [0], given: 142

Location: India
Concentration: Finance, Technology
GMAT 1: 650 Q48 V31
GMAT 2: 770 Q50 V47
WE: Information Technology (Computer Software)
Re: he rise in free, do-it-yourself instructions on the Internet [#permalink]

### Show Tags

19 Jan 2013, 00:32
_________________

"Appreciation is a wonderful thing. It makes what is excellent in others belong to us as well."
― Voltaire

Press Kudos, if I have helped.
Thanks!

Kudos [?]: 480 [0], given: 142

Intern
Joined: 25 Jun 2012
Posts: 1

Kudos [?]: [0], given: 8

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

01 Mar 2013, 06:09
Can anyone explain y is it "c"? Y not "B"?

Kudos [?]: [0], given: 8

Manager
Joined: 24 Sep 2012
Posts: 90

Kudos [?]: 170 [16], given: 3

Location: United States
GMAT 1: 730 Q50 V39
GPA: 3.2
WE: Education (Education)
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

01 Mar 2013, 22:18
16
KUDOS
3
This post was
BOOKMARKED
Hello Supriya,

The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

What the passage tells us is that there is a reduction in the revenue for home service technicians and an increase in the number of injuries caused by the people who have attempted home repairs themselves. The passage further mentions that this is because do-it yourself(diy) instructions are not as good as they should be. Our aim is to find which of the stated options could be inferred from the passage.

Now, let us analyze statements b and c.

b) Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

The passage does mention that the do-it-yourself instructions are not up to mark. However, nowhere does the passage suggest that the instructions are wrongfully written or have some flaws which led to the increase in accidents. We cannot even be sure of whether those who met with accidents followed the instructions states in the diy manuals religiously. They could have committed some mistakes which might have led to accidents. Since, we cannot be completely sure of whether option b is true or not, based on the information in the passage, this statement in clearly not the one we are looking for.

Now, let us analyze option c.

c) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

We already know that the free sale of online diy home repair instructions has caused a decrease in revenue for home service technicians. Statement c tells us that home technicians also sell the diy home repair instructions online. However, even though they might sell these instructions online, the revenue generated by this sale would not be equal to the decrease in revenue due to free offerings. If these values were equal, then they would not have incurred any decrease in net revenue at all. They would have either faced a no profit-no loss situation or a profitable earnings as their loss in revenue earned by home repair would have been negated by profit generated by online sale of diy instruction manuals. However, the passage mentions that there is a reduction in revenue for home technicians and hence, this statement can be inferred.

Hope this helps! Let me know if you need any further clarification.

Supriya90 wrote:
Can anyone explain y is it "c"? Y not "B"?

Kudos [?]: 170 [16], given: 3

Director
Joined: 14 Dec 2012
Posts: 832

Kudos [?]: 1628 [0], given: 197

Location: India
Concentration: General Management, Operations
GMAT 1: 700 Q50 V34
GPA: 3.6
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

06 Jul 2013, 04:39
hi,

here the correct option C :The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

it assumes home technician is the same group which is making this free site of DO IT YOURSELF.
but there is no where in the argument given regarding this.
please suggest such assumptions aree correct?

regards
_________________

When you want to succeed as bad as you want to breathe ...then you will be successfull....

GIVE VALUE TO OFFICIAL QUESTIONS...

learn AWA writing techniques while watching video : http://www.gmatprepnow.com/module/gmat-analytical-writing-assessment

Kudos [?]: 1628 [0], given: 197

Manager
Joined: 04 Apr 2013
Posts: 149

Kudos [?]: 57 [0], given: 36

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

06 Jul 2013, 05:54

Do-It-Yourself may be sold by an independent agency. How can we assume "home technicians" are the people selling these "instructions"?

What if "Home-depot" is selling the online instructions and there are many local home technicians?

_________________

MGMAT1 - 540 ( Trying to improve )

Kudos [?]: 57 [0], given: 36

Manager
Joined: 22 Apr 2013
Posts: 88

Kudos [?]: 36 [0], given: 95

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

06 Jul 2013, 06:53
targetgmatchotu wrote:
The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

The number of people who are not home repair technicians and who have been injured while attempting home repairs has increased.

Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

Most free do-it-yourself home repair instructions found on the Internet do not provide enough clear information regarding safety precautions.

As more free do-it-yourself instructions for home repairs are made available on the Internet, home service technicians will suffer more losses in revenue.

Source: Veritas Prep Quiz
Good question it is !!!

I thought it was D. Stem states many of the instructions are inadequate but not why they are in adequate. My thought was injuries are caused by not making it explicitly clear what to do to avoid injuries.

But after reading some of the other explanations, I can see how C can be the right answer, though it's not as instinctive as D IMO.
_________________

I do not beg for kudos.

Kudos [?]: 36 [0], given: 95

Manager
Status: Got Bling! Joined Phd Finance at IIML
Joined: 03 Jul 2013
Posts: 95

Kudos [?]: 21 [0], given: 39

Location: India
Concentration: Finance, Economics
Schools: iim-bangalore - Class of 1994
GMAT 1: 750 Q59 V43
GPA: 3.12
WE: Research (Investment Banking)
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

08 Jul 2013, 20:19
Kris01 wrote:
Hello Supriya,

The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

What the passage tells us is that there is a reduction in the revenue for home service technicians and an increase in the number of injuries caused by the people who have attempted home repairs themselves. The passage further mentions that this is because do-it yourself(diy) instructions are not as good as they should be. Our aim is to find which of the stated options could be inferred from the passage.

Now, let us analyze statements b and c.

b) Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

The passage does mention that the do-it-yourself instructions are not up to mark. However, nowhere does the passage suggest that the instructions are wrongfully written or have some flaws which led to the increase in accidents. We cannot even be sure of whether those who met with accidents followed the instructions states in the diy manuals religiously. They could have committed some mistakes which might have led to accidents. Since, we cannot be completely sure of whether option b is true or not, based on the information in the passage, this statement in clearly not the one we are looking for.

Now, let us analyze option c.

c) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

We already know that the free sale of online diy home repair instructions has caused a decrease in revenue for home service technicians. Statement c tells us that home technicians also sell the diy home repair instructions online. However, even though they might sell these instructions online, the revenue generated by this sale would not be equal to the decrease in revenue due to free offerings. If these values were equal, then they would not have incurred any decrease in net revenue at all. They would have either faced a no profit-no loss situation or a profitable earnings as their loss in revenue earned by home repair would have been negated by profit generated by online sale of diy instruction manuals. However, the passage mentions that there is a reduction in revenue for home technicians and hence, this statement can be inferred.

Hope this helps! Let me know if you need any further clarification.

Supriya90 wrote:
Can anyone explain y is it "c"? Y not "B"?

I am having frequent trouble with such CR questions because GMAT questions are generally complete in their provided inferences. Here one has to relate the online sales to hoe service technicians and aggregate sales where the internet offers could have been provided by any class and hence i chose just A which atleast is directly inferred.

Kudos [?]: 21 [0], given: 39

Manager
Status: Persevering
Joined: 15 May 2013
Posts: 218

Kudos [?]: 101 [0], given: 34

Location: India
GMAT Date: 08-02-2013
GPA: 3.7
WE: Consulting (Consulting)
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

06 Aug 2013, 01:23
docdrizzeally wrote:
Kris01 wrote:
Hello Supriya,

The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

What the passage tells us is that there is a reduction in the revenue for home service technicians and an increase in the number of injuries caused by the people who have attempted home repairs themselves. The passage further mentions that this is because do-it yourself(diy) instructions are not as good as they should be. Our aim is to find which of the stated options could be inferred from the passage.

Now, let us analyze statements b and c.

b) Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

The passage does mention that the do-it-yourself instructions are not up to mark. However, nowhere does the passage suggest that the instructions are wrongfully written or have some flaws which led to the increase in accidents. We cannot even be sure of whether those who met with accidents followed the instructions states in the diy manuals religiously. They could have committed some mistakes which might have led to accidents. Since, we cannot be completely sure of whether option b is true or not, based on the information in the passage, this statement in clearly not the one we are looking for.

Now, let us analyze option c.

c) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

We already know that the free sale of online diy home repair instructions has caused a decrease in revenue for home service technicians. Statement c tells us that home technicians also sell the diy home repair instructions online. However, even though they might sell these instructions online, the revenue generated by this sale would not be equal to the decrease in revenue due to free offerings. If these values were equal, then they would not have incurred any decrease in net revenue at all. They would have either faced a no profit-no loss situation or a profitable earnings as their loss in revenue earned by home repair would have been negated by profit generated by online sale of diy instruction manuals. However, the passage mentions that there is a reduction in revenue for home technicians and hence, this statement can be inferred.

Hope this helps! Let me know if you need any further clarification.

Supriya90 wrote:
Can anyone explain y is it "c"? Y not "B"?

I am having frequent trouble with such CR questions because GMAT questions are generally complete in their provided inferences. Here one has to relate the online sales to hoe service technicians and aggregate sales where the internet offers could have been provided by any class and hence i chose just A which atleast is directly inferred.

It can't be a because it is clearly mentioned in the argument itself.

B is incorrect because we cannot infer that most of the people have been injured. An increase might also occur if some of the people had followed the instruction.
_________________

--It's one thing to get defeated, but another to accept it.

Kudos [?]: 101 [0], given: 34

Director
Joined: 17 Dec 2012
Posts: 623

Kudos [?]: 534 [5], given: 16

Location: India
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

06 Aug 2013, 04:33
5
KUDOS
Expert's post
2
This post was
BOOKMARKED
targetgmatchotu wrote:
The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

The number of people who are not home repair technicians and who have been injured while attempting home repairs has increased.

Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.

Most free do-it-yourself home repair instructions found on the Internet do not provide enough clear information regarding safety precautions.

As more free do-it-yourself instructions for home repairs are made available on the Internet, home service technicians will suffer more losses in revenue.

Source: Veritas Prep Quiz
Good question it is !!!

A cannot be inferred because the author talks only about injuries caused and not to whom exactly it is caused and also number of injuries doesn't exactly equate to the number of people getting injured.

B cannot be inferred because the author only says that there is only an increase in the injuries because internet instructions are followed but that doesn't mean that most of the injuries are caused while following the internet instructions

C can be inferred because the author says there is a decrease in the revenue of the home service technicians and so any income they could have gained due to sale of the online material is less than the revenue they lost due to the free online material

D cannot be inferred because the author doesn't talk about safety precautions at all, only that the instructions are not well written

E cannot be inferred because the author doesn't indicate anything about the future of the home service technicians.
_________________

Srinivasan Vaidyaraman
Sravna
http://www.sravnatestprep.com/regularcourse.php

Standardized Approaches

Kudos [?]: 534 [5], given: 16

Intern
Joined: 11 Dec 2008
Posts: 4

Kudos [?]: 4 [2], given: 0

Schools: Columbia
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

07 Aug 2013, 01:09
2
KUDOS
The question does not mention that the the home service technicians made online instructions. In addition, it says the online instructions are free. How could the technicians gain any cents of revenue from "selling them"?. C is not correct and this is not a good GMAT question.

Kudos [?]: 4 [2], given: 0

Director
Joined: 17 Dec 2012
Posts: 623

Kudos [?]: 534 [0], given: 16

Location: India
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

07 Aug 2013, 01:34
Expert's post
1
This post was
BOOKMARKED
nhanlevent wrote:
The question does not mention that the the home service technicians made online instructions. In addition, it says the online instructions are free. How could the technicians gain any cents of revenue from "selling them"?. C is not correct and this is not a good GMAT question.

Hi,

We have to either assume that online instructions were sold by the home service technicians or they were not when nothing is mentioned about that. In the former case the inference follows because the revenue of the home service technicians decreased. In the latter case we have to take the sale as zero because that is what finally it boils down to. Thus the inference still follows. But the wording of choice C suggests the first assumption.

Not all online instructions are free. The author only talks about the rise of free online instructions. So online instructions were also sold.
_________________

Srinivasan Vaidyaraman
Sravna
http://www.sravnatestprep.com/regularcourse.php

Standardized Approaches

Kudos [?]: 534 [0], given: 16

Intern
Joined: 11 Dec 2008
Posts: 4

Kudos [?]: 4 [0], given: 0

Schools: Columbia
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

07 Aug 2013, 01:46
The stimulus may have done a better job by explicitly saying that the home service technicians sell on-line instructions. People may, for example, find a lot of instructions by amateurs in various fields, instructions that help many who don't have to pay for classes or services.

Kudos [?]: 4 [0], given: 0

Manager
Joined: 05 Jun 2013
Posts: 55

Kudos [?]: 12 [0], given: 31

Location: India
Concentration: Entrepreneurship, General Management
GMAT 1: 640 Q48 V29
GPA: 3.6
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

24 Nov 2013, 23:59
Is this a good question?

Can we expect such question stems in actual GMAT?

Kudos [?]: 12 [0], given: 31

Manager
Joined: 09 Nov 2013
Posts: 87

Kudos [?]: 14 [0], given: 30

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

29 Nov 2013, 06:06
well, the only problem with option "c" is that no where it is written that home technicians also sell services online. Well, option "e" might get a fair chance to win as it show a cause effect relation and if we take all information in premise true then as thumb rule [ of GMAT makers] all effect will have only mentioned cause and will always apply.

Kudos [?]: 14 [0], given: 30

Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4488

Kudos [?]: 8730 [3], given: 105

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

29 Nov 2013, 12:09
3
KUDOS
Expert's post
3
This post was
BOOKMARKED
sidpopy wrote:
well, the only problem with option "c" is that no where it is written that home technicians also sell services online. Well, option "e" might get a fair chance to win as it show a cause effect relation and if we take all information in premise true then as thumb rule [ of GMAT makers] all effect will have only mentioned cause and will always apply.

Dear Sid,
I'm happy to respond to you.

Here's the argument again.
The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

First of all, here's a blog about inference on the GMAT CR:
http://magoosh.com/gmat/2013/gmat-criti ... inference/
Here's a related blog on inference on the GMAT RC:
http://magoosh.com/gmat/2012/inference- ... rehension/

(C) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.
Have "home service technicians" offered sales of "online do-it-yourself home repair instructions"? We have no direct evidence. It's plausible that at least a few technicians did this somewhere ---- we have no guarantee that it is widespread in any way. This very carefully about what choice (C) says. Let
X = dollar value of gain in the sales of online do-it-yourself home repair instructions
Y = dollar value of the lose in revenue from the decline in home service calls

All choice (C) is saying is: X < Y. That's all it's saying. Even if no "home service technicians" anywhere offered anything online, then X = 0, but the inequality proposed by (C) is still true. Because the "home service technicians" have experience a "a decrease in revenue", we absolutely know that any gains they had were overshadowed by their losses. That's what makes this a very solid inference.

(E) As more free do-it-yourself instructions for home repairs are made available on the Internet, home service technicians will suffer more losses in revenue.
Hmmm. This could be true. Maybe, online instructions will increase and fewer people will contact home service technicians. Maybe. BUT, maybe it's true that the market has already stabilized. Maybe all the people who are inclined to be do-in-yourself-ers have already stopped using home service technicians, and maybe the people who are still paying the home service technicians for repairs are those people who have no intention whatsoever of ever doing any repair themselves. Therefore, we cannot necessarily infer (E).
As a general rule, just because a market has been moving in a certain direction for some period of time is most certainly no guaranteed that this direction will continue unabated into the future. Even a casual study of the stock market will reveal this abundantly. Markets start, stop, and reverse on a dime, without any prior warning. Any inference that posits an unlimited continuation of any market condition is on very shaky ground.

All this is why (C) is a much better answer than (E). Does all this make sense?
Mike
_________________

Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Kudos [?]: 8730 [3], given: 105

Manager
Joined: 11 Aug 2011
Posts: 194

Kudos [?]: 399 [0], given: 886

Location: United States
Concentration: Economics, Finance
GMAT Date: 10-16-2013
GPA: 3
WE: Analyst (Computer Software)
Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

01 Dec 2013, 06:17
mikemcgarry wrote:
sidpopy wrote:
well, the only problem with option "c" is that no where it is written that home technicians also sell services online. Well, option "e" might get a fair chance to win as it show a cause effect relation and if we take all information in premise true then as thumb rule [ of GMAT makers] all effect will have only mentioned cause and will always apply.

Dear Sid,
I'm happy to respond to you.

Here's the argument again.
The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

First of all, here's a blog about inference on the GMAT CR:
http://magoosh.com/gmat/2013/gmat-criti ... inference/
Here's a related blog on inference on the GMAT RC:
http://magoosh.com/gmat/2012/inference- ... rehension/

(C) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.
Have "home service technicians" offered sales of "online do-it-yourself home repair instructions"? We have no direct evidence. It's plausible that at least a few technicians did this somewhere ---- we have no guarantee that it is widespread in any way. This very carefully about what choice (C) says. Let
X = dollar value of gain in the sales of online do-it-yourself home repair instructions
Y = dollar value of the lose in revenue from the decline in home service calls

All choice (C) is saying is: X < Y. That's all it's saying. Even if no "home service technicians" anywhere offered anything online, then X = 0, but the inequality proposed by (C) is still true. Because the "home service technicians" have experience a "a decrease in revenue", we absolutely know that any gains they had were overshadowed by their losses. That's what makes this a very solid inference.

(E) As more free do-it-yourself instructions for home repairs are made available on the Internet, home service technicians will suffer more losses in revenue.
Hmmm. This could be true. Maybe, online instructions will increase and fewer people will contact home service technicians. Maybe. BUT, maybe it's true that the market has already stabilized. Maybe all the people who are inclined to be do-in-yourself-ers have already stopped using home service technicians, and maybe the people who are still paying the home service technicians for repairs are those people who have no intention whatsoever of ever doing any repair themselves. Therefore, we cannot necessarily infer (E).
As a general rule, just because a market has been moving in a certain direction for some period of time is most certainly no guaranteed that this direction will continue unabated into the future. Even a casual study of the stock market will reveal this abundantly. Markets start, stop, and reverse on a dime, without any prior warning. Any inference that posits an unlimited continuation of any market condition is on very shaky ground.

All this is why (C) is a much better answer than (E). Does all this make sense?
Mike

Hi Mike

Thanks for the explanation given.
Can you throw some light on why B is incorrect , it seemed to me the best choice initially.
_________________

Kudos me if you like my post !!!!

Kudos [?]: 399 [0], given: 886

Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4488

Kudos [?]: 8730 [0], given: 105

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

02 Dec 2013, 11:31
akhil911 wrote:
Hi Mike

Thanks for the explanation given.
Can you throw some light on why B is incorrect , it seemed to me the best choice initially.

Dear akhil911,
I'm happy to help.

Here's the argument again, with choice (B).

The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

(B) Most people who are injured while attempting home repairs have done so while following instructions found in free do-it-yourself instructions on the Internet.

Remember, in order for something be to be "inferred" on the GMAT CR or RC, it must be absolutely indisputable, guaranteed by God, true and justifiable beyond any shadow of a doubt. On inference questions, beware of being drawn into assumptions or loose suggestions. See these two posts:
http://magoosh.com/gmat/2013/gmat-criti ... inference/
http://magoosh.com/gmat/2012/inference- ... rehension/

The argument say that people are trying repairs more on their own and are getting hurt. OK, stop here. Why are they getting hurt? Maybe they are too cheap to pay for the repairman but are mechanically incompetent. Maybe they are following books that are not very clear. Maybe the are relying on manuals that come with products, that contain insufficient information to do sophisticated repairs. Maybe they don't know the proper precautions for their tools. Maybe the poorly made tools malfunctioned. etc. etc. etc. We can imagine many many reasons.

Then, the argument follows that fact with the statement: repair instructions on the Internet are bad. This juxtaposition elicits the assumption that the folks who were hurt doing repairs were injured precisely because they were following faulty Internet instructions. That's the assumption the text encourages, but do we know it's true? Do we have any evidence that the people injured in home repairs were hurt primarily because of poor Internet instructions, rather than because of any one of a number of other possible causes? Can we say with absolutely certainty that, of all possible causes, the bad instructions on the Internet were the prime culprit in hurting all these people? We cannot. The low quality of the Internet instructions could be the primary culprit, but we don't know for sure that it is.

You see, the text used a clever juxtaposition to suggest something, to draw the reader into an assumption. That's not the same as an inference. On the GMAT, an inference is something you know with bedrock certainty, as an inescapable conclusion of what appears in the text.

Does all this make sense?
Mike
_________________

Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Kudos [?]: 8730 [0], given: 105

Intern
Joined: 17 May 2012
Posts: 4

Kudos [?]: 1 [0], given: 2

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

22 Dec 2013, 15:50
mikemcgarry wrote:
sidpopy wrote:
well, the only problem with option "c" is that no where it is written that home technicians also sell services online. Well, option "e" might get a fair chance to win as it show a cause effect relation and if we take all information in premise true then as thumb rule [ of GMAT makers] all effect will have only mentioned cause and will always apply.

Dear Sid,
I'm happy to respond to you.

Here's the argument again.
The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

Which of the following can be inferred from the argument above?

First of all, here's a blog about inference on the GMAT CR:
http://magoosh.com/gmat/2013/gmat-criti ... inference/
Here's a related blog on inference on the GMAT RC:
http://magoosh.com/gmat/2012/inference- ... rehension/

(C) The overall sale of online do-it-yourself home repair instructions by home service technicians has not been equal to the loss of revenue the technicians have incurred due to free offerings of this sort of material.
Have "home service technicians" offered sales of "online do-it-yourself home repair instructions"? We have no direct evidence. It's plausible that at least a few technicians did this somewhere ---- we have no guarantee that it is widespread in any way. This very carefully about what choice (C) says. Let
X = dollar value of gain in the sales of online do-it-yourself home repair instructions
Y = dollar value of the lose in revenue from the decline in home service calls

All choice (C) is saying is: X < Y. That's all it's saying. Even if no "home service technicians" anywhere offered anything online, then X = 0, but the inequality proposed by (C) is still true. Because the "home service technicians" have experience a "a decrease in revenue", we absolutely know that any gains they had were overshadowed by their losses. That's what makes this a very solid inference.

(E) As more free do-it-yourself instructions for home repairs are made available on the Internet, home service technicians will suffer more losses in revenue.
Hmmm. This could be true. Maybe, online instructions will increase and fewer people will contact home service technicians. Maybe. BUT, maybe it's true that the market has already stabilized. Maybe all the people who are inclined to be do-in-yourself-ers have already stopped using home service technicians, and maybe the people who are still paying the home service technicians for repairs are those people who have no intention whatsoever of ever doing any repair themselves. Therefore, we cannot necessarily infer (E).
As a general rule, just because a market has been moving in a certain direction for some period of time is most certainly no guaranteed that this direction will continue unabated into the future. Even a casual study of the stock market will reveal this abundantly. Markets start, stop, and reverse on a dime, without any prior warning. Any inference that posits an unlimited continuation of any market condition is on very shaky ground.

All this is why (C) is a much better answer than (E). Does all this make sense?
Mike

Hello Mike,

Thanks for the explanation, I now understand why C is a contender.

Had a quick question that I wanted to put across to you..

Isn't the sale of something that is mentioned to be free in the premise a little weird to accept while choosing the answer? I disregarded C for this very reason.

Kudos [?]: 1 [0], given: 2

Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4488

Kudos [?]: 8730 [0], given: 105

Re: The rise in free, do-it-yourself instructions on the [#permalink]

### Show Tags

22 Dec 2013, 16:12
aarchak wrote:
Hello Mike,

Thanks for the explanation, I now understand why C is a contender.

Had a quick question that I wanted to put across to you..

Isn't the sale of something that is mentioned to be free in the premise a little weird to accept while choosing the answer? I disregarded C for this very reason.

Dear aarchak,
I'm happy to help.

The prompt argument says:
The rise in free, do-it-yourself instructions on the Internet for home repairs has led to a decrease in revenue for home service technicians and an increase in the number of injuries caused by people who have attempted home repairs themselves. Unfortunately, not all of the do-it-yourself instructions on the Internet are written as well as they should be.

That lets us know that some of the online do-it-yourself instructions, but we don't know that all of them are free. The fact that some are free would make it even harder to sell the ones that aren't free.

Does this make sense?
Mike
_________________

Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Kudos [?]: 8730 [0], given: 105

Re: The rise in free, do-it-yourself instructions on the   [#permalink] 22 Dec 2013, 16:12

Go to page    1   2    Next  [ 40 posts ]

Display posts from previous: Sort by