GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 23 Sep 2018, 00:01

### 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

# Every year many people become ill because of airborne mold

Author Message
TAGS:

### Hide Tags

Intern
Joined: 20 Mar 2007
Posts: 47
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

06 Apr 2010, 12:02
Caught between A and C

The stem states,"..mold is almost always found in places where there is substantial moisture"

Going with A for this reason.OA pls.
Manhattan Prep Instructor
Affiliations: ManhattanGMAT
Joined: 21 Jan 2010
Posts: 339
Location: San Francisco
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

06 Apr 2010, 19:58
1
Hey Kiski,

Also, always be aware of really strong statements. C says "Mold cannot grow in dry places". Would we need to assume that mold NEVER grows in dry places? If it happened one out of a million times, would that compromise our argument? Probably not. Always be wary of terms like "cannot", "never", and "always".

-t
_________________

Tommy Wallach | Manhattan GMAT Instructor | San Francisco

Manhattan GMAT Discount | Manhattan GMAT Reviews

Manager
Joined: 08 Oct 2010
Posts: 206
Location: Uzbekistan
Schools: Johnson, Fuqua, Simon, Mendoza
WE 3: 10
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

01 Feb 2011, 08:32
One more remark why C is not correct:
If one looks at the last sentence of the original text there is written "as a breeding ground". But in C there is a word "grow".

In the original text it is given that the mold breeds in moisture but this statement does not negate that it cannot grow in dry places. Moreover, "to grow" and "to breed" are not of the same meaning. Here the original text does not give overtly or does not indicate strongly that the mold does not grow in dry places. This is why negating C does not destroy the original text at all. Hence one is inclined to check other ans. options.
Manager
Joined: 27 Oct 2010
Posts: 128
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

01 Feb 2011, 10:23
A. Relatively easy one. The argument has to presuppose that mold itself does not create moisture.
Intern
Joined: 03 Jan 2011
Posts: 2
Location: New York, NY
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

27 Feb 2011, 05:13
feruz77 wrote:
One more remark why C is not correct:
If one looks at the last sentence of the original text there is written "as a breeding ground". But in C there is a word "grow".

In the original text it is given that the mold breeds in moisture but this statement does not negate that it cannot grow in dry places. Moreover, "to grow" and "to breed" are not of the same meaning. Here the original text does not give overtly or does not indicate strongly that the mold does not grow in dry places. This is why negating C does not destroy the original text at all. Hence one is inclined to check other ans. options.

i think differentiating between growing and breeding would be splitting hairs. as the premise already states that mold is almost always found in places where there is substantial moisture, being extreme (C) does not have to be true.

Tommy has a decent explanation above
_________________

Ashish
Share why wrong answer(s) are wrong than just telling why the right one is right

Director
Status: Impossible is not a fact. It's an opinion. It's a dare. Impossible is nothing.
Affiliations: University of Chicago Booth School of Business
Joined: 03 Feb 2011
Posts: 763
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

27 Feb 2011, 05:17
A true example of reversal in causality. That's what is being checked. A is clear.
Director
Joined: 21 Dec 2010
Posts: 511
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

28 Feb 2011, 05:39
1
A is the definite answer . The conclusion depends on the fact that moisture causes mold . The relationship is cause and effect.

If the cause effect relationship is reversed the argument loses ground.
_________________

What is of supreme importance in war is to attack the enemy's strategy.

Senior Manager
Joined: 29 Jan 2011
Posts: 307
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

Updated on: 19 Jun 2011, 14:25
Every year many people become ill because of airborne mold spores in their homes. After someone becomes ill, specialists are often hired to eradicate the mold. These specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture. If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold.

Which of the following is an assumption on which the argument depends?

a)Mold itself does not create moisture.

b)Most homeowners know enough about plumbing to determine whether theirs is in good condition.

c)Mold cannot grow in dry areas.

d)No varieties of mold are harmless.

e)Mold spores cannot be filtered from the air.

Why is C wrong?

Originally posted by siddhans on 18 Jun 2011, 22:55.
Last edited by siddhans on 19 Jun 2011, 14:25, edited 1 time in total.
Director
Status: Prep started for the n-th time
Joined: 29 Aug 2010
Posts: 544
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

19 Jun 2011, 08:07
Assumption : <b>Unstated</b> premise which links the stated premise with the conclusion.

The argument gives a cause effect reasoning,

Moisture causes mould.

Moisture is the cause, mould is the effect.

A supports this by saying that mould is not the cause of moisture (preventing Effect => Cause).

C is not correct, as it is already stated.(Mould is almost always found in places with moisture).

Crick
Manager
Joined: 09 Feb 2010
Posts: 59
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

13 Sep 2011, 11:21

the main conclusion of this is:

to avoid this issue people should make sure their internal plumbing is in good condition

if we negate this:if people don't know enough about plumbing then the conclusion is lost..

Manager
Joined: 09 Feb 2010
Posts: 59
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

13 Sep 2011, 11:26
thinking more about it i think A is indeed correct as i could hire a professional to make sure that my plumbing is in good condition !!

But if mold itself created more moisture then having plumbing in great condition would not help !!
Intern
Joined: 09 Jun 2011
Posts: 29
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

13 Sep 2011, 11:44
siddhans wrote:
Why is C wrong?

Every year many people become ill because of airborne mold spores in their homes. After someone becomes ill, specialists are often hired to eradicate the mold. These specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture. If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold.

Which of the following is an assumption on which the argument depends?

a)Mold itself does not create moisture.

b)Most homeowners know enough about plumbing to determine whether theirs is in good condition.

c)Mold cannot grow in dry areas.

d)No varieties of mold are harmless.

e)Mold spores cannot be filtered from the air.

A&C are contenders.
Conclusion: If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition.
Negate A.. Mold itself creates moisture.
This weakens the conclusion: Even if plumbing is in good condition, mold can create moisture and thus mold poisoning can happen...

Negate C. Mold can grow in dry areas. Argument says that mold is mostly found in places where there is substantial moisture. Thus we know that mold can be found in other areas also (as mostly doesn't mean only). But the chances are less.. and thus argument survives...
Manager
Joined: 25 Aug 2011
Posts: 169
Location: India
GMAT 1: 730 Q49 V40
WE: Operations (Insurance)
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

10 Mar 2012, 01:59
Every year many people become ill because of airborne mold spores in their homes. After someone becomes ill, specialists are often hired to eradicate the mold. These specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture. If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold.

Which of the following is an assumption on which the argument depends?

1]Mold itself does not create moisture.
2]Most homeowners know enough about plumbing to determine whether theirs is in good condition.
3]Mold cannot grow in dry areas.
4]No varieties of mold are harmless.
5]Mold spores cannot be filtered from the air.

can someone pl explain why E is not an assumption here..
the conclusion says - to avoid mold poisoning control moisture .... but what if i can avoid poising by filtering the air then i dont have to bother about the leaks
Manager
Joined: 02 Jan 2011
Posts: 158
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

10 Mar 2012, 03:03
The passage speaks about the relation between mold and moisture. Molds are found where moisture is. Even experts look for those wet spots to track molds. So it is advised for the inhabitants of the house to check their plumbing in a timely manner.

1]Mold itself does not create moisture.
2]Most homeowners know enough about plumbing to determine whether theirs is in good condition.
3]Mold cannot grow in dry areas. - No reference of dry areas - Incorrect
4]No varieties of mold are harmless. - Irrelevant information - Incorrect
5]Mold spores cannot be filtered from the air. - This talks about the alternative way of removing mold. - Incorrect

I chose B since it was advised for the people to check for plumbing.

Would like to know why the answer is A.
Senior Manager
Joined: 07 Nov 2009
Posts: 261
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

10 Mar 2012, 21:53
devinawilliam83 wrote:
Every year many people become ill because of airborne mold spores in their homes. After someone becomes ill, specialists are often hired to eradicate the mold. These specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture. If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold.

Which of the following is an assumption on which the argument depends?

1]Mold itself does not create moisture.
2]Most homeowners know enough about plumbing to determine whether theirs is in good condition.
3]Mold cannot grow in dry areas.
4]No varieties of mold are harmless.
5]Mold spores cannot be filtered from the air.

can someone pl explain why E is not an assumption here..
the conclusion says - to avoid mold poisoning control moisture .... but what if i can avoid poising by filtering the air then i dont have to bother about the leaks

I agree with your point but the conclusion is not only the point you highlighted .... You are talking of something to reduce molds .. but the question asks the assumption taken in coming to the conclusion that we should prevent leakage to avoid molds ... Think of point 5 and the point I have highlighted ...

Assumption is that leakage doesnt need to be avoided at all.. may be molds are creating moisture themselves ...
Do i make sense?
Retired Moderator
Joined: 16 Nov 2010
Posts: 1451
Location: United States (IN)
Concentration: Strategy, Technology
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

10 Mar 2012, 22:11
Guys, I'm locking this topic. This has been discussed in detail previously.

every-year-many-people-become-ill-because-of-airborne-mold-91389.html
_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

GMAT Club Premium Membership - big benefits and savings

Manager
Status: Bunuel's fan!
Joined: 08 Jul 2011
Posts: 186
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

10 May 2012, 08:45
It is A. Since Mold can be found in a damp area, there is a possibility that mold brings moist. A eliminates that possibility.
Intern
Joined: 21 Oct 2012
Posts: 5
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

Updated on: 20 Nov 2012, 09:59
Every year many people become ill because of airborne mold spores in their homes. After someone becomes ill, specialists are often hired to eradicate the mold. These specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture. If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold.

Which of the following is an assumption on which the argument depends?

Mold itself does not create moisture.

Most homeowners know enough about plumbing to determine whether theirs is in good condition.

Mold cannot grow in dry areas.

No varieties of mold are harmless.

Mold spores cannot be filtered from the air.

OA will be provided after discussion, thanks!

Originally posted by vivtai on 11 Nov 2012, 01:56.
Last edited by vivtai on 20 Nov 2012, 09:59, edited 2 times in total.
VP
Status: Final Lap Up!!!
Affiliations: NYK Line
Joined: 21 Sep 2012
Posts: 1004
Location: India
GMAT 1: 410 Q35 V11
GMAT 2: 530 Q44 V20
GMAT 3: 630 Q45 V31
GPA: 3.84
WE: Engineering (Transportation)
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

11 Nov 2012, 23:50
IMO A is teh right answer...
Cause and effect

Leakage ------> growth of Mold

Mold doesnt cause the moisture.
Manager
Status: Private GMAT Tutor
Joined: 22 Oct 2012
Posts: 93
Location: India
Concentration: Economics, Finance
Schools: IIMA (A)
GMAT 1: 780 Q51 V47
Re: Every year many people become ill because of airborne mold  [#permalink]

### Show Tags

13 Nov 2012, 09:53
vivtai wrote:
Every year many people become ill because of airborne mold spores in their homes. After someone becomes ill, specialists are often hired to eradicate the mold. These specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture. If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold.

Which of the following is an assumption on which the argument depends?

Mold itself does not create moisture.

Most homeowners know enough about plumbing to determine whether theirs is in good condition.

Mold cannot grow in dry areas.

No varieties of mold are harmless.

Mold spores cannot be filtered from the air.

OA will be provided after discussion, thanks!

Conclusion: If one wishes to avoid mold poisoning, then, one should make sure to keep all internal plumbing in good condition to prevent leakage that could serve as a breeding ground for mold
Premise: specialists look in damp areas of the house, since mold is almost always found in places where there is substantial moisture

As we can see that the premise says that the mold is almost always found in moist areas and then the conclusion asks us to keep plumbing in order to prevent leakage that could serve as breeding ground for mold. Thus, the observation that mold is almost always found in moist areas is led to mean that moist areas lead to molds, not the other way around.

In other words, the observations is like X and Y are always found together. Then, we conclude from this that X leads to Y. In deriving this conclusion, we are assuming that Y does not lead to X and there is no other substance Z, which could lead to both X and Y.

Thus, when we derive that moist areas act as breeding grounds for mold, we are assuming that Mold itself does not create moisture (option A).

Therefore, option A is correct.

Regards,
CJ
_________________
Re: Every year many people become ill because of airborne mold &nbs [#permalink] 13 Nov 2012, 09:53

Go to page   Previous    1   2   3    Next  [ 54 posts ]

Display posts from previous: Sort by

# Every year many people become ill because of airborne mold

## Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.