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Radio stations!

by gmat_perfect » Wed Jul 21, 2010 11:34 am
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) 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 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.

[spoiler]OA: A[/spoiler]

Please explain with logic.
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by brijesh » Wed Jul 21, 2010 12:03 pm
gmat_perfect 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) 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.
I think B is the ans. reasoning is as follows: There is a rise in the number of radio stations but not the sale of radios, in the area. This may be because all the people has already the special radio. As here there is no mention of increase in population ...or in no of resident etc
(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 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.

[spoiler]OA: A[/spoiler]

Please explain with logic.
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by reply2spg » Wed Jul 21, 2010 8:00 pm
This is bit tough problem, if I am not wrong then I think I have already explained this one. I will find out that link and I will paste it here
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by abhigang » Wed Jul 21, 2010 11:12 pm
Conc : The number of Verdlanders receiving the RDS signal did not increase significantly.
Premise : 1. The number of RDS radios did not change.
2. The number of RDS stations increased significantly.

So any assumption that says the number of people with RDS who were receiving signals till1994 did not change considerably after 1994.
So with these assumption in mind, A fits very well as it says very few RDS stations are broadcasting to areas where it was not broadcasted earlier.

B is also close but it says that in 1996, Verdlanders already had a RDS radio who were in the listening area. But it does not elicit any assumption. In fact, it states the conclusion itself in a different way.
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by sumanr84 » Thu Jul 22, 2010 12:19 am
abhigang wrote:Conc : The number of Verdlanders receiving the RDS signal did not increase significantly.
Premise : 1. The number of RDS radios did not change.
2. The number of RDS stations increased significantly.

So any assumption that says the number of people with RDS who were receiving signals till1994 did not change considerably after 1994.
So with these assumption in mind, A fits very well as it says very few RDS stations are broadcasting to areas where it was not broadcasted earlier.

B is also close but it says that in 1996, Verdlanders already had a RDS radio who were in the listening area. But it does not elicit any assumption. In fact, it states the conclusion itself in a different way.
I completely agree with abhigang. Watch out for argument smart language,

the number of RDS-equipped radios in Verdland was about the same - NOT SAME ( Leaves possibility open for new radios)
the number of Verdlanders ...probably did not increase significantly - Means at least it increased a bit.

Opening sentence of option A - "Few if any of the RDS radio stations..." - Completely sits in the GAP visible in the premise.

(It took me more than 3 mins to arrive at this answer after POE..really tough in exam condition)
I am on a break !!
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