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Radio Stations with radio data system (RDS) technolodgy broadcast spec

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Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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Radio Stations with radio data system (RDS) technolodgy broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.

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

(A) Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.

(B) In 1996 Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.

(C) Equipping a radio station with RDS technology does not decrease the station's listening area.

(D) In 1996 Verdlanders who did not own radios equipped to receive RDS could not any programming from the RDS radio stations that began broadcasting in Verdland after 1994.

(E) The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.
[Reveal] Spoiler: OA

Last edited by hazelnut on 14 Oct 2017, 05:58, edited 1 time in total.
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 16 Jun 2008, 21:41
Golden rule of assumption question - apply negation and the option should go against the conclusion.

Try B : In 1996 Verdlanders who lived within the listening area of an RDS station did not had a radio equipped to receive RDS.

It means there were some people, with RDS radio set, living in areas with no RDS listening area. when the radio station increased from X to Y, there are high chances thst these people would have come in listening areas and number of people listening to RDS would have increased. But as per question it dint happen.

Answer is B.

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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Source : GMATPrep

Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verlanders receiving the special program information probably did not increase significantly.

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

A. few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.

B. In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.

C. Equipping a radio station with RDS technology does not decrease the station’s listening area.

D. In 1996 Verlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994.

E. The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 08 Oct 2008, 08:32
amitdgr wrote:
Source : GMATPrep

Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verlanders receiving the special program information probably did not increase significantly.

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

A. few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.

B. In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.

C. Equipping a radio station with RDS technology does not decrease the station’s listening area.

D. In 1996 Verlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994.

E. The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.



Go with D.
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 08 Oct 2008, 08:36
Its not D :(
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 08 Oct 2008, 09:27
Could be B?

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 08 Oct 2008, 09:36
No not B
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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well my guess was D ; but after 4 mins i drilled down to A...

actually the stimulus states that the reason why the no. of people recieving the program has not increased is that
the number of radios has not increased.To conclude this there must be assumption like on of the following :

-Before or during 1994 people didn't have radios which had RDS (coz they might initially be having radios that had RDS , in that case once the technology is there
those radios which were not used that much before 1994 would be used more by 1996 )

- Now like A says that though there is incease in the number of stations but the "covegare" is small hence those people with RDS radios who were not recieving any signal before still continue to recieve no signal and hence no increase.

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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amitdgr wrote:
Source : GMATPrep

Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verlanders receiving the special program information probably did not increase significantly.

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

A. few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.
Correct. This confirms that the new radio stations did not reach out to a large number of untapped listeners during this time.

B. In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.
Out of scope. This doesn't draw a parallel with the earlier situation -- in 1994, what number of Verdlanders in the listening area were equipped with RDS-enabled radios?

C. Equipping a radio station with RDS technology does not decrease the station’s listening area.
Not an assumption. If equipping a radio station with RDS decreased the station's listening area, there would be fewer listeners in 1996 than there were in 1994. Howeover, this is not the assumption we're looking for, as the argument doesn't depend on it (an assumption HAS to be true). Negate this, and you'll see the argument will still hold.

D. In 1996 Verlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994.
[Edit in explanation]There is a subtle premise shift here. The conclusion limits its scope to "special programs" -- which can only be received by radios equipped with RDS, whereas this statement talks about not receiving ANY programming from RDS-enabled stations.

E. The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.
Irrelevant


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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 08 Oct 2008, 19:30
Thanks guys ... This one sure seems complicated due to the language... OA is A
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 11 Oct 2008, 19:38
amitdgr wrote:
Source : GMATPrep

Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verlanders receiving the special program information probably did not increase significantly.

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

A. few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations. -> since no significant rise in no. of people rx the prog of RDS ,this means prev those who did not rx was llow in number

B. In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS. -> this is out ,this does not contribute to concl

C. Equipping a radio station with RDS technology does not decrease the station’s listening area. -> this is out

D. In 1996 Verlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994. -> i wanted to select this but A beats this option ,this negated does not affect the argument

E. The RDS radio stations in Verdland in 1996 did not all offer the same type of programming. -> IRRELEVANT


Clearly A
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 24 Oct 2009, 17:28
This question is straight from the horse's mouth: http://www.mba.com/MBASite/Templates/Se ... RNODEGUID={51983A4F-A98C-466E-9E1C-AE921610CDDB}&NRORIGINALURL=/mba/service/mymba/Teaser.htm%3fAnswerIndex%3d4%26QuestionID%3d21&NRCACHEHINT=NoModifyGuest&AnswerIndex=4&QuestionID=21

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 24 Oct 2009, 17:53
hmm , It thought its C, now I see how it is A from the explanations, thanks guys.
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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At first I picked E, but now I understand why A is correct.

Based on the question we know RDS-reception requires 3 things:
1) Station must send RDS info with signal
2) Receiving radio must be able to decode RDS information

Also we know:
the number of stations grew from 250 to 600
the number of receivers stayed the same

The conclusion is "..the number of verdlanders receiving the special program information probably did not increase significantly. "

In this problem we must support this conclusion (in my opinion a poor one) with a key assumption.

Choice A is basically saying the additional RDS stations are in the same broadcast area as the previous RDS stations.

I have a diagram to illustrate a situation without assumption A.

Attachment:
Verdland.JPG
Verdland.JPG [ 19.28 KiB | Viewed 18043 times ]


As you can see in the drawing, an additional station in a different area of Verdland could increase the number of people receiving the RDS information.

For anyone wondering why the broadcast area for the blue station is not a circle, the broadcast tower is in a deep valley.

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 12 Jul 2010, 17:57
TallJTinChina wrote:
At first I picked E, but now I understand why A is correct.

Based on the question we know RDS-reception requires 3 things:
1) Station must send RDS info with signal
2) Receiving radio must be able to decode RDS information

Also we know:
the number of stations grew from 250 to 600
the number of receivers stayed the same

The conclusion is "..the number of verdlanders receiving the special program information probably did not increase significantly. "

In this problem we must support this conclusion (in my opinion a poor one) with a key assumption.

Choice A is basically saying the additional RDS stations are in the same broadcast area as the previous RDS stations.

I have a diagram to illustrate a situation without assumption A.

Attachment:
Verdland.JPG


As you can see in the drawing, an additional station in a different area of Verdland could increase the number of people receiving the RDS information.

For anyone wondering why the broadcast area for the blue station is not a circle, the broadcast tower is in a deep valley.

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 12 Jul 2010, 19:39
jparraos wrote:
why not C?


My guess is the official guide would call C outside the argument.

C is an assumption that is not key to the argument. If we assume the opposite:

Equipping a radio station with RDS technology does decrease the station's listening area.

The conclusion still stands "..the number of verdlanders receiving the special program information probably did not increase significantly."

In fact if the opposite of C was true, this would give support to the conclusion "....number of verdlanders did not increase significantly." (If adding RDS capability decreased listening area then the number of verdlanders who have access to RDS could actually decrease.)

When the conclusion is stated "did not" you end up with A or B outcome.

In this case we have:
A: the number receiving RDS did not increase significantly
or
B: the number receiving RDS did increase significantly

A would include:
*a significant decrease
*a minor increase
*a constant level
*a minor decrease

As I stated in my other post this is a very weak conclusion. Using "...probably not increase significantly" reminds me of a politician.

Such as: "Good news, the growth in the unemployment rate was not as large as expected."

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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suyashjhawar wrote:
Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.

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

a)In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.
b)Equipping a radio station with RDS technology does not decrease the station's listening area.
c)Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.
d)In 1996 Verdlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994.
e)The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.



Answer is C. Here is why?

A -- This statement only talks about the year 1996 and there is no comparison with the year 1994 (the time when the number of RDS stations increased). Hence this is ruled out.

B -- Not in scope.

C -- Strong candidate since this options rules out/significantly reduces the possibility of the newly added RDS radio stations having greater reach.

D -- Irrelevant. (Also is very confusing)

E -- Again only one of the year is noted without any clear comparative analysis being brought forth between 1994 and 1996.

Hence answer is C. Hope my reasoning is sound.
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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New post 07 Sep 2010, 20:51
Think about what's being said.

RDS Stations: Increase
RDS Radios: Same
This means: Number of people receiving special programs didn't increase.

If the stations increased but the radios stayed the same, then the stations must be broadcasting to the same people who had the radios before. So the RDS broadcasts in new places is comparatively low.

suyashjhawar wrote:
Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.

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

a)In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS. Not given. This is not a NECESSARY condition.
b)Equipping a radio station with RDS technology does not decrease the station's listening area. We know nothing about this. Out-of-scope.
c)Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations. This is directly in line with what we expect.
d)In 1996 Verdlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994. Out-of-Scope again.
e)The RDS radio stations in Verdland in 1996 did not all offer the same type of programming. Irrelevant.

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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By POE A and D prevail.

Using Negation -

D : In 1996 Verlanders who did not own radios equipped to receive RDS received any programming from the RDS radio stations that began broadcasting in Verdland after 1994.

helps to explain why the RDS-equipped radios in Verdland was about the same. Hence nullified as it should have wakened the conclusion "the number of Verlanders receiving the special program information probably did not increase significantly", but it dosen't.

So, A win's.

IMO A.
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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec [#permalink]

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I believe D is straight no ! In 1996 Verlanders who did not own radios equipped to receive RDS
- this means the group it is considering is wrong / unrepresentative. It is imperative to have a correct receiver. That is the assumption for the things to work.

Premise : Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive.

A is answer !

amit2k9 wrote:
By POE A and D prevail.

Using Negation -

D : In 1996 Verlanders who did not own radios equipped to receive RDS received any programming from the RDS radio stations that began broadcasting in Verdland after 1994.

helps to explain why the RDS-equipped radios in Verdland was about the same. Hence nullified as it should have wakened the conclusion "the number of Verlanders receiving the special program information probably did not increase significantly", but it dosen't.

So, A win's.

IMO A.

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Re: Radio Stations with radio data system (RDS) technolodgy broadcast spec   [#permalink] 13 Oct 2010, 21:08

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