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Since the mayor s publicity campaign for Greenville s bus

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Since the mayor s publicity campaign for Greenville s bus [#permalink] New post 28 Apr 2012, 20:50
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (02:07) correct 19% (03:00) wrong based on 210 sessions
Official Guide for GMAT Verbal Review, 2nd Edition

Practice Question
Question No.: 5
Page: 117
Difficulty:


Since the mayor’s publicity campaign for Greenville’s bus service began six months ago, morning automobile traffic into the midtown area of the city has decreased seven percent. During the same period, there has been an equivalent rise in the number of persons riding buses into the midtown area. Obviously, the mayor’s publicity campaign has convinced many people to leave their cars at home and ride the bus to work..

Which of the following, if true, casts the most serious doubt on the conclusion drawn above?

(A) Fares for all bus routes in Greenville have risen an average of five percent during the past six months.
(B) The mayor of Greenville rides the bus to City Hall in the city’s midtown area.
(C) Road reconstruction has greatly reduced the number of lanes available to commuters in major streets leading to the midtown area during the past six months.
(D) The number of buses entering the midtown area of Greenville during the morning hours is exactly the same now as it was one year ago.
(E) Surveys show that longtime bus riders are no more satisfied with the Greenville bus service than they were before the mayor’s publicity campaign began
[Reveal] Spoiler: OA

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Last edited by dentobizz on 21 Oct 2013, 21:02, edited 1 time in total.
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Re: 9. Since the mayor’s publicity campaign for Greenville’s bus [#permalink] New post 28 Apr 2012, 23:38
I also went with C,
Number of buses not increasing does not mean that the number of passenger has not increased ...

anybody with another explanation
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Re: 9. Since the mayor’s publicity campaign for Greenville’s bus [#permalink] New post 29 Apr 2012, 00:52
+1 for C..

There is another cause for the decrease in traffic and increase in number of persons riding buses. It is Road reconstruction and not Mayor's publicity campaign.

D doesn't look like any reason to cast doubt on the conclusion.
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Re: 9. Since the mayor’s publicity campaign for Greenville’s bus [#permalink] New post 29 Apr 2012, 04:24
C is the answer. Please check your OA
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Re: 9. Since the mayor’s publicity campaign for Greenville’s bus [#permalink] New post 08 May 2012, 22:07
boomtangboy wrote:
9. Since the mayor’s publicity campaign for Greenville’s bus service began six months ago, morning automobile traffic into the midtown area of the city has decreased seven percent. During the same period, there has been an equivalent rise in the number of persons riding buses into the midtown area. Obviously, the mayor’s publicity campaign has convinced many people to leave their cars at home and ride the bus to work..
Which of the following, if true, casts the most serious doubt on the conclusion drawn above?
(A) Fares for all bus routes in Greenville have risen an average of five percent during the past six months.
(B) The mayor of Greenville rides the bus to City Hall in the city’s midtown area.
(C) Road reconstruction has greatly reduced the number of lanes available to commuters in major streets leading to the midtown area during the past six months.
(D) The number of buses entering the midtown area of Greenville during the morning hours is exactly the same now as it was one year ago.
(E) Surveys show that longtime bus riders are no more satisfied with the Greenville bus service than they were before the mayor’s publicity campaign began



+1 for C.
Reason--> We have to find the alternative reason so as to why people have started using buses. Was that as a result of Mayor's campaign or was there any other reason due to which people have started using the buses.
Thus C gives the appropriate reason that it was due to the reduced number of lanes available to commuters in major streets leading to the midtown area during the past six months.
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Re: Since the mayor s publicity campaign for Greenville s bus [#permalink] New post 20 Sep 2013, 06:47
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boomtangboy wrote:
Since the mayor’s publicity campaign for Greenville’s bus service began six months ago, morning automobile traffic into the midtown area of the city has decreased seven percent. During the same period, there has been an equivalent rise in the number of persons riding buses into the midtown area. Obviously, the mayor’s publicity campaign has convinced many people to leave their cars at home and ride the bus to work..

Which of the following, if true, casts the most serious doubt on the conclusion drawn above?

(A) Fares for all bus routes in Greenville have risen an average of five percent during the past six months.
(B) The mayor of Greenville rides the bus to City Hall in the city’s midtown area.
(C) Road reconstruction has greatly reduced the number of lanes available to commuters in major streets leading to the midtown area during the past six months.
(D) The number of buses entering the midtown area of Greenville during the morning hours is exactly the same now as it was one year ago.
(E) Surveys show that longtime bus riders are no more satisfied with the Greenville bus service than they were before the mayor’s publicity campaign began


This is a weaken question. We need an answer that makes the given conclusion less likely to occur.
First of all the conclusion is "the mayor’s publicity campaign has convinced many people to leave their cars at home and ride the bus to work"


(A) IRRELEVANT: Fares going up does not have a bearing on the conclusion on the effectiveness of Mayor's publicity campaign
(B) IRRELEVANT: Nice to know that the Mayor is a driver, but irrelevant to the argument
(C) CORRECT: if the number of lanes available to commuters to the midtown decreased in the same period in which the rise in the number of people riding bus, many commuters, that used to go to work by car have been forced to take the bus. This weaken the conclusion giving a new piece of evidence that can explain why the percentage of people taking bus has gone up and the number of cars has gone down
(D) IRRELEVANT/STRENGTHENS: D gives evidence that the rise in people using bus is not the result of a rise in the number of buses available to Midtown Area. In some sense it knocks out of the way some doubts on the correctness of the given conclusion
(E) IRRELEVANT: customer satisfaction is never mentioned in the argument


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Re: Since the mayor s publicity campaign for Greenville s bus   [#permalink] 20 Sep 2013, 06:47
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