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# Regulations will not allow a pesticide that is toxic to humans to be u

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Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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04 Dec 2010, 09:41
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Regulations will not allow a pesticide that is toxic to humans to be used inside houses unless the pesticide will dissipate completely from the air within eight hours after its application. One test that pesticide manufacturers standardly use to determine how quickly anti-termite pesticides dissipate involves spraying the pesticides on the walls of room-sized plywood boxes and then timing its dissipation.

Which of the following would it be most useful to know in order to evaluate whether a dissipation time of just under eight hours on the manufacturers’ test indicates that an antitermite pesticide that is toxic to humans obeys regulations for use in houses?

(A) Whether anti-termite pesticides dissipate more slowly in furnished rooms than in plywood boxes

(B) Whether people who apply anti-termite pesticide standardly wear protective equipment that prevents them from being exposed to the pesticide

(C) Whether people whose house is being treated with anti-termite pesticide generally know that they should remain out of their house during the hours immediately after the pesticide’s application

(D) Whether there are anti-termite pesticides that are toxic to humans that, when subjected to the manufacturers’ test, dissipate completely from the air in the boxes in well under eight hours

(E) Whether anti-termite pesticides that are not toxic to humans tend to take longer to dissipate than those that are toxic
[Reveal] Spoiler: OA

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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04 Dec 2010, 10:38
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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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04 Dec 2010, 10:52
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if the pesticide dissipated more slowly in the furnished room than that would not solve the purpose of testing it . On the
other hand , if it dissipated faster in the furnished room , then it safer for humans.
Therefore taking two extreme stance has effect on the conclusion and therefore it is A.

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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04 Dec 2010, 18:17
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sumitjain wrote:
Regulations will not allow a pesticide that is toxic to humans to be used inside houses
unless the pesticide will dissipate completely from the air within eight hours after its
application. One test that pesticide manufacturers standardly use to determine how
quickly anti-termite pesticides dissipate involves spraying the pesticides on the walls of
room-sized plywood boxes and then timing its dissipation.

Which of the following would it be most useful to know in order to evaluate whether a
dissipation time of just under eight hours on the manufacturers’ test indicates that an antitermite
pesticide that is toxic to humans obeys regulations for use in houses?

A. Whether anti-termite pesticides dissipate more slowly in furnished rooms than in
plywood boxes
B. Whether people who apply anti-termite pesticide standardly wear protective
equipment that prevents them from being exposed to the pesticide
C. Whether people whose house is being treated with anti-termite pesticide generally
know that they should remain out of their house during the hours immediately after the pesticide’s application
D. Whether there are anti-termite pesticides that are toxic to humans that, when
subjected to the manufacturers’ test, dissipate completely from the air in the boxes
in well under eight hours
E. Whether anti-termite pesticides that are not toxic to humans tend to take longer to
dissipate than those that are toxic

'Useful to evaluate' is a tricky question type in GMAT. You need to understand the stimulus and question thoroughly.

Stimulus:
A toxic pesticide can be used inside houses only if it dissipates within 8 hrs.
One test used to determine this involves spraying room sized plywood boxes and timing it.
(So basically, instead of spraying in an actual room, pesticide is sprayed in a room sized box and timed.)

Question: In case a pesticide does have a dissipation time of just under 8 hrs on the test, can it be used in houses? In order to answer this question which of the following will be useful to evaluate? (What I am thinking at this point is that I might need to know whether there is any difference between rate of dissipation in a plywood box and in an actual room)

A. Whether anti-termite pesticides dissipate more slowly in furnished rooms than in plywood boxes
Yes, I need to know this. If a pesticide has a dissipation time of just under 8 hrs, I need to know if it will take more time to dissipate in an actual furnished room. If it will take more time, it may not be allowed in houses. If it will take the same time, it may be allowed in houses. So this is useful to evaluate.

B. Whether people who apply anti-termite pesticide standardly wear protective equipment that prevents them from being exposed to the pesticide
Has nothing to do with rate of dissipation.

C. Whether people whose house is being treated with anti-termite pesticide generally know that they should remain out of their house during the hours immediately after the pesticide’s application
Has nothing to do with rate of dissipation.

D. Whether there are anti-termite pesticides that are toxic to humans that, when subjected to the manufacturers’ test, dissipate completely from the air in the boxes in well under eight hours
Whether such pesticides exist or not doesn't matter. I am concerned about that fact that if a pesticide does pass the test, can it be used in houses?

E. Whether anti-termite pesticides that are not toxic to humans tend to take longer to dissipate than those that are toxic
The argument has nothing to do with non toxic pesticides.
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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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05 Dec 2010, 09:22
Thanks Raths and Karishma! Good explanation.

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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28 Mar 2014, 01:05
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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28 Mar 2014, 03:06
clearly A which satisfies what the argument wants.

Rest all other choices are irrelaevant with the argument looked closely.

-h

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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07 Aug 2014, 23:26
Regulations will not allow a pesticide that is toxic to humans to be used inside houses
unless the pesticide will dissipate completely from the air within eight hours after its
application. One test that pesticide manufacturers standardly use to determine how
quickly anti-termite pesticides dissipate involves spraying the pesticides on the walls of
room-sized plywood boxes and then timing its dissipation.

Which of the following would it be most useful to know in order to evaluate whether a
dissipation time of just under eight hours on the manufacturers’ test indicates that an antitermite
pesticide that is toxic to humans obeys regulations for use in houses?

A. Whether anti-termite pesticides dissipate more slowly in furnished rooms than in
plywood boxes
B. Whether people who apply anti-termite pesticide standardly wear protective
equipment that prevents them from being exposed to the pesticide
C. Whether people whose house is being treated with anti-termite pesticide generally
know that they should remain out of their house during the hours immediately after the pesticide’s application
D. Whether there are anti-termite pesticides that are toxic to humans that, when
subjected to the manufacturers’ test, dissipate completely from the air in the boxes
in well under eight hours
E. Whether anti-termite pesticides that are not toxic to humans tend to take longer to
dissipate than those that are toxic.

Thank God i got it correct this time. It is Option A.

Assumption question type and Evaluate question type have one thing in common i.e. an implied premise or a bridge between premise and conclusion.

In this question, Option A forms a bridge between the Most Important Premise and the conclusion. Lets evaluate all the options thoroughly:-

Option B:- Out of scope - as for the anti-termite pesticides that are toxic to humans to pass the test, there is no mention that the people should be wearing any
protective equipment.

Option C:- Out of scope - People awareness is also not a part of the premise. The litmus test is whether the pesticide dissipates before 8 hrs of application.

Option D:- Out of Scope - Regulators do not care if there are no such pesticides that exist in the market or no. Even if they do not exist, it is not their business.

Option E:- Out of Scope - The argument does not talk about the pesticides that are not toxic to humans. We are only concerned with the pesticides that are toxic to
humans.

Option A:- This is exactly our concern and hence the right answer choice - The most important premise states that the regulators test the pesticide on 4 sided plywood walls, then will it be similar to the houses i.e. <= 8 hrs where pesticides shall be applied. If yes, then argument falls apart, if no then argument holds.

Hence, Option A is the correct answer.

Hope the above helps!!!

Thanks.
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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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14 Mar 2016, 05:11
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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05 Jun 2016, 08:07
I got stuck between A and D but picked A because i realized that i needed to know the test done is correct or not . Is there any way to provev the test wrong. and then it came to me that A is the answer

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Re: Regulations will not allow a pesticide that is toxic to humans to be u [#permalink]

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16 Aug 2017, 18:43
sumitjain wrote:
Regulations will not allow a pesticide that is toxic to humans to be used inside houses unless the pesticide will dissipate completely from the air within eight hours after its application. One test that pesticide manufacturers standardly use to determine how quickly anti-termite pesticides dissipate involves spraying the pesticides on the walls of room-sized plywood boxes and then timing its dissipation.

Which of the following would it be most useful to know in order to evaluate whether a dissipation time of just under eight hours on the manufacturers’ test indicates that an antitermite pesticide that is toxic to humans obeys regulations for use in houses?

(A) Whether anti-termite pesticides dissipate more slowly in furnished rooms than in plywood boxes

(B) Whether people who apply anti-termite pesticide standardly wear protective equipment that prevents them from being exposed to the pesticide

(C) Whether people whose house is being treated with anti-termite pesticide generally know that they should remain out of their house during the hours immediately after the pesticide’s application

(D) Whether there are anti-termite pesticides that are toxic to humans that, when subjected to the manufacturers’ test, dissipate completely from the air in the boxes in well under eight hours

(E) Whether anti-termite pesticides that are not toxic to humans tend to take longer to dissipate than those that are toxic

Basically what this question is which one of these answer presents a question that challenges the validity of the study conducted? A is absolutely important because if the antipesticide dissipates more slowly on furnished rooms then the results of the study are not accurate.

A

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Re: Regulations will not allow a pesticide that is toxic to humans to be u   [#permalink] 16 Aug 2017, 18:43
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