A recent report determined that although only three percent : GMAT Critical Reasoning (CR) - Page 6
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 09 Dec 2016, 20:37

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A recent report determined that although only three percent

Author Message
TAGS:

### Hide Tags

SVP
Joined: 03 Feb 2003
Posts: 1603
Followers: 8

Kudos [?]: 235 [11] , given: 0

A recent report determined that although only three percent [#permalink]

### Show Tags

01 Jul 2003, 06:02
11
KUDOS
92
This post was
BOOKMARKED
A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

The conclusion drawn above depends on which of the following assumptions?

(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.
(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.
(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.
Moderator
Joined: 01 Sep 2010
Posts: 3033
Followers: 768

Kudos [?]: 6344 [0], given: 991

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

25 Apr 2013, 03:46
Merged topic.

Please do a search on the board befor post the question that is discussed several times

regards
_________________
Intern
Joined: 05 Feb 2013
Posts: 29
Location: Ukraine
GMAT 1: 680 Q48 V35
Followers: 0

Kudos [?]: 8 [0], given: 3

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

26 Apr 2013, 04:50
It is easy to find right answer using Negation technique.

For example:
(B) Drivers who are ticketed for exceeding the speed limit are less likely to exceed the speed limit regularly than are drivers who are not ticketed.
this transformation is clearly opposite to the meaning stated in the argument.
Intern
Joined: 05 Feb 2013
Posts: 29
Location: Ukraine
GMAT 1: 680 Q48 V35
Followers: 0

Kudos [?]: 8 [0], given: 3

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

26 Apr 2013, 05:15
stolyar wrote:
A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

The conclusion drawn above depends on which of the following assumptions?

(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.
(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.
(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

It is easy to find right answer using Negation technique.

For example:
(B) Drivers who are ticketed for exceeding the speed limit are less likely to exceed the speed limit regularly than are drivers who are not ticketed.
this transformation is clearly opposite to the meaning stated in the argument.
Manager
Joined: 22 Jan 2013
Posts: 62
Followers: 0

Kudos [?]: 27 [0], given: 28

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

26 Apr 2013, 17:56
Please do a search on the board befor post the question that is discussed several times

Please provide with oA and OE
Senior Manager
Joined: 16 Dec 2011
Posts: 452
Followers: 11

Kudos [?]: 194 [0], given: 70

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

26 Apr 2013, 18:44
Please do a search on the board befor post the question that is discussed several times

Start of this particular thread is 2003 and all other duplicate threads are merged here. There was no discussion on this same question prior to 2003. Did you find any other thread with same question recently?

Please provide with oA and OE

If you read the thread from the beginning, you will find OA and many discussions.
Current Student
Joined: 26 Jul 2012
Posts: 63
Followers: 0

Kudos [?]: 10 [0], given: 8

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

23 Jul 2013, 17:28
I had some trouble with this one and the key was recognizing the following:
- tiny fraction of people have radar detectors E.g, if there are 100 total drivers, only 3 are RD
- 1/3 of all the people who get tickets are the RDs. E.g, so our 3 dudes are getting alot of the tickets!
- conclusion - well, people with the rd must be speeding regularly.

I missed the key word "regularly"
A) This does not help the conclusion, it is actually against it. our 3 dudes are getting lots of tickets!
Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed
limit than are drivers who do not.
(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly
than are drivers who are not ticketed.
--- > This is the correct answer because it helps the conclusion by saying that the ticketed drivers keep speeding regularly once they get the ticket.
(C) The number of vehicles that were ticketed for exceeding the speed limitwas greater than the number of
vehicles that were equipped with radar detectors.
--> Not relevant.
(D) Manyof the vehicles that were ticketed for exceeding the speed limitwere ticketed more than once in the
time period covered by the report.
----> This is tricky but there is no mention of the maryland drivers or people with radars.
(E) Drivers on Maryland highways exceeded the speed limitmore often than did drivers on other state
---> out of scope.
highways not covered in the report.
GMAT Pill Representative
Joined: 14 Apr 2009
Posts: 2048
Location: New York, NY
Followers: 383

Kudos [?]: 1317 [3] , given: 8

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

07 Aug 2013, 14:48
3
KUDOS
Expert's post
We'll attack this question with some framework + prethinking.

Framework: Expectation vs Actuality
Pre-thinking: Link the two relevant topics

This question starts off with the expectation vs actuality framework
Expectation: 3% (low percentage) with radar detectors ->might expect 3% of ticketed cars to have radar detectors
Actuality: 3% (low percentage) with radar detectors -> actually 33% of ticketed cars have radar detectors

Conclusion: Those using radar detectors are MORE likely to exceed speed limit REGULARLY.

Keep in mind that the word "regularly" adds a dimension of "degree" into the conclusion. It's not a simple relationship between "detector = speed more", but rather "detector = consistently speed more"

So our pre-thinking should be to find an answer choice that connects those two topics:
1) something to do with "detector"
2) something to do with "consistently speeding more" -- keyword 'consistently' is important

(B) [Drivers who are ticketed for exceeding the speed limit ] are [ more likely to exceed the speed limit regularly]
than are drivers who are not ticketed.

So does (B) talk about the detector? Not directly BUT it does so indirectly.
[Drivers who are ticketed for exceeding the speed limit ]
We already established before that a good percentage of those who are ticketed (33%) are those WITH detectors. Thus (B) is already referencing this segment of the population. Then the second half says this group (those with detectors) are more likely to exceed the speed limit REGULARLY -- fully captures the conclusion we had. In fact, it almost sounds like a repeat of the conclusion -- but it does so by substituting that first part ("detectors") with something slightly different.

(A) [ Drivers who equip their vehicles with radar detectors ] are [less likely to be ticketed for exceeding the speed
limit ]
than are drivers who do not.

1) "detector" -- YES
2) "consistently speeding more" -- NO, goes in opposite direction and says LESS likely.

(C) [ The number of vehicles that were ticketed for exceeding the speed limit ] was greater than the number of
vehicles that were equipped with radar detectors.
1) "detector" -- no, this is talking about the # of vehicles...not the population of those that speeded. Notice the other answer choices reference "drivers" -- not "the number of vehicles"
2) "consistently speeding more" -- no

(D) [ Many of the vehicles that were ticketed for exceeding the speed limit ] were ticketed more than once in the
time period covered by the report.
1) "detector" -- no, this is talking about some detail about a portion of the vehicles -- we only care about the drivers that used the "detector" -- not the details about some irrelevant segment
2) "consistently speeding more" -- no

(E) [ Drivers on Maryland highways ] exceeded the speed limit more often than did drivers on other state
highways not covered in the report.

1) "detector"-- no, talks about drivers in Maryland as a whole. The conclusion only cares about drivers who used the detector, not the whole group.
_________________
Intern
Joined: 08 Sep 2013
Posts: 2
Followers: 0

Kudos [?]: 0 [0], given: 0

### Show Tags

09 Sep 2013, 20:00
ranga41 wrote:
B it is, if B is false, then people who exceed speed limit regularly may not get ticket and somebody who exceed speed limit only once gets caught unfortunately, then the argument falls apart.

Can someone please elaborate? I think I'm just unclear what the question is really asking. B, sounds completely arbitrary to me even after reading the explanations.

Thank you!
Director
Joined: 29 Nov 2012
Posts: 898
Followers: 14

Kudos [?]: 1007 [0], given: 543

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

22 Sep 2013, 05:01
Can someone explain this question using a numerical example.. its really confusing.
_________________

Click +1 Kudos if my post helped...

Amazing Free video explanation for all Quant questions from OG 13 and much more http://www.gmatquantum.com/og13th/

GMAT Prep software What if scenarios http://gmatclub.com/forum/gmat-prep-software-analysis-and-what-if-scenarios-146146.html

Intern
Joined: 25 Oct 2013
Posts: 20
Followers: 0

Kudos [?]: 4 [0], given: 89

### Show Tags

07 Jan 2014, 04:16
ywilfred wrote:
3% of drivers on maryland highways equip their vehicles with radar detectors
31% of all vehicles ticketed for exceeding the speed limit were equip with them
Drivers who equip their vehicles with radar detectors are more likely to exceed speed lmiit regularly than driver who do not <-- conclusion

(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.
- does not hold up the conclusion

(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.
This one holds up the conclusion. We're told a large percentage of vehicles with radar detectors were ticketed for speeding. Then (B) says those who are ticketed are likely to exceed the speed limit regularly. So the conclusion that vehicles with radar detectors exceed the speed limit regularly is true.

(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
- not important.

(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
- does not help the conclusion

(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.
- out of scope

Could you explain why D doesnt hold the conclusion?
Math Forum Moderator
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 2127
Location: India
GPA: 3.5
Followers: 82

Kudos [?]: 565 [0], given: 311

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

07 Jan 2014, 11:04
stolyar wrote:
A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

1. 3% vehicles in Maryland highways are equipped with radar detectors , while 97% don't.

2. 33% of the total vehicles ticked for speeding were quipped with radar detectors.

3. Vehicles equipped with radar detectors are more likely to exceed speed limits regularly....

The conclusion drawn above depends on which of the following assumptions?

(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.

The passage concludes - Possessing a radar detector in vehicles increases the possibility of exceeding speed limits.. So this can't be the required assumption.

(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.

True our conclusion is based on this assumption - Keep it aside....

(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.

We can't compare the highlighted parts.

(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.

Might be possible that during the survey period the same vehicles were ticketed more than once..

(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

Out of scope...

Left with (B) and (D)

(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.

(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.

(B) presents a regular phenomenon of drivers while (D) brings in a new idea about recurrence of ticketing during the survey period ...

I would prefer to go with (B) since it accurately helps us reach the conclusion...
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Director
Joined: 10 Mar 2013
Posts: 608
Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
GPA: 3.88
WE: Information Technology (Consulting)
Followers: 13

Kudos [?]: 250 [0], given: 200

A recent report determined that although only three percent [#permalink]

### Show Tags

06 Sep 2014, 00:39
Can somebody explain why it is not the answer D. ....Vehicles were ticketed more than once --> if only 3 percent equipped with radars and 33% have been ticketed this 2 statements correlate stronger than answer B. Answer B is just restating the conclusion....
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

800Score ONLY QUANT CAT1 51, CAT2 50, CAT3 50
GMAT PREP 670
MGMAT CAT 630
KAPLAN CAT 660

Director
Joined: 10 Mar 2013
Posts: 608
Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
GPA: 3.88
WE: Information Technology (Consulting)
Followers: 13

Kudos [?]: 250 [0], given: 200

A recent report determined that although only three percent [#permalink]

### Show Tags

06 Sep 2014, 00:53
GMATPill wrote:
We'll attack this question with some framework + prethinking.

Framework: Expectation vs Actuality
Pre-thinking: Link the two relevant topics

This question starts off with the expectation vs actuality framework
Expectation: 3% (low percentage) with radar detectors ->might expect 3% of ticketed cars to have radar detectors
Actuality: 3% (low percentage) with radar detectors -> actually 33% of ticketed cars have radar detectors

Conclusion: Those using radar detectors are MORE likely to exceed speed limit REGULARLY.

Keep in mind that the word "regularly" adds a dimension of "degree" into the conclusion. It's not a simple relationship between "detector = speed more", but rather "detector = consistently speed more"

So our pre-thinking should be to find an answer choice that connects those two topics:
1) something to do with "detector"
2) something to do with "consistently speeding more" -- keyword 'consistently' is important

(B) [Drivers who are ticketed for exceeding the speed limit ] are [ more likely to exceed the speed limit regularly]
than are drivers who are not ticketed.

So does (B) talk about the detector? Not directly BUT it does so indirectly.
[Drivers who are ticketed for exceeding the speed limit ]
We already established before that a good percentage of those who are ticketed (33%) are those WITH detectors. Thus (B) is already referencing this segment of the population. Then the second half says this group (those with detectors) are more likely to exceed the speed limit REGULARLY -- fully captures the conclusion we had. In fact, it almost sounds like a repeat of the conclusion -- but it does so by substituting that first part ("detectors") with something slightly different.

(A) [ Drivers who equip their vehicles with radar detectors ] are [less likely to be ticketed for exceeding the speed
limit ]
than are drivers who do not.

1) "detector" -- YES
2) "consistently speeding more" -- NO, goes in opposite direction and says LESS likely.

(C) [ The number of vehicles that were ticketed for exceeding the speed limit ] was greater than the number of
vehicles that were equipped with radar detectors.
1) "detector" -- no, this is talking about the # of vehicles...not the population of those that speeded. Notice the other answer choices reference "drivers" -- not "the number of vehicles"
2) "consistently speeding more" -- no

(D) [ Many of the vehicles that were ticketed for exceeding the speed limit ] were ticketed more than once in the
time period covered by the report.
1) "detector" -- no, this is talking about some detail about a portion of the vehicles -- we only care about the drivers that used the "detector" -- not the details about some irrelevant segment
2) "consistently speeding more" -- no

(E) [ Drivers on Maryland highways ] exceeded the speed limit more often than did drivers on other state
highways not covered in the report.

1) "detector"-- no, talks about drivers in Maryland as a whole. The conclusion only cares about drivers who used the detector, not the whole group.

The first part in B and D is absolutely identical - Both of them include indirectly drivers with detectors, but you restate those parts in a different way.
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

800Score ONLY QUANT CAT1 51, CAT2 50, CAT3 50
GMAT PREP 670
MGMAT CAT 630
KAPLAN CAT 660

Intern
Joined: 29 Aug 2013
Posts: 13
Followers: 0

Kudos [?]: 0 [0], given: 0

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

28 Nov 2014, 04:53
Hello

even after reading this thread, the solution seems to be unclear to me.

What I understand is, that the conclusion talks about some "regularity" and the premises don't, so the missing assumption somehow needs make a connection.

BUT: The premises say, that 3% of all drivers use detectors and 33% of all ticketed driver used detectors. Does that not logically imply that drivers with detectors speed more!??

Thanks if someone can clarify that for me!
Director
Status: Verbal Forum Moderator
Joined: 17 Apr 2013
Posts: 635
Location: India
GMAT 1: 710 Q50 V36
GMAT 2: 750 Q51 V41
GMAT 3: 790 Q51 V49
GPA: 3.3
Followers: 63

Kudos [?]: 411 [0], given: 297

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

30 Dec 2014, 00:51
The total percentage of vehicle owners with radar is only 3%. However the percentage of vehicle owner with radar detector who were ticketed is 33% of all those who were ticketed.

Prethinking:
Despite only 3% vehicles have radar, the %age of ticketed vehicles is 33% of the total # of vehicles ticketed.
The people who were ticketed are the ones who break the speed limits.
Vehicles with Radar's are the One who have high proportion of ticketing.
Option B is correct.

Why is option C wrong?

C is saying that the number of vehicles that were ticketed > Number of vehicles that were equipped with Radar.

Lets take an example-

10000 - Total Vehicles
300 - equipped with radar = 3% of total

Let us take a sample space where 200 vehicles were ticketed.

33% of 200 = 66 Vehicles = Vehicles Ticketed with radar.

Now substitute this data in C-
C is saying that the number of vehicles that were ticketed > Number of vehicles that were equipped with Radar.

number of vehicles that were ticketed(Data sample that we have chosen) = 200

Number of vehicles that were equipped with Radar (Data sample that we have chosen) = 300

Is 200 > 300? If Not then how could answer C be correct?
_________________

Like my post Send me a Kudos It is a Good manner.
My Debrief: http://gmatclub.com/forum/how-to-score-750-and-750-i-moved-from-710-to-189016.html

Intern
Joined: 04 Mar 2014
Posts: 1
Followers: 0

Kudos [?]: 0 [0], given: 0

A recent report determined that although only 3 percent of drivers on [#permalink]

### Show Tags

14 Jan 2015, 22:52
A recent report determined that although only 3 percent of drivers on Maryland highways equipped their vehicles with radar detectors, 33 percent pf all the vehicles ticketed for exceeding the speed limit were equipped with them.Clearly drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly.

A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than the drivers who do not
B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the sped limit regularly than are drivers who are not ticketed.
C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the period covered by the report.
E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

BR,
JB
Moderator
Status: It always seems impossible until it's done!!
Joined: 29 Aug 2012
Posts: 681
Location: India
GMAT 1: 680 Q47 V34
Followers: 59

Kudos [?]: 991 [0], given: 223

Re: A recent report determined that although only 3 percent of drivers on [#permalink]

### Show Tags

14 Jan 2015, 23:18
JordanBuffet wrote:
A recent report determined that although only 3 percent of drivers on Maryland highways equipped their vehicles with radar detectors, 33 percent pf all the vehicles ticketed for exceeding the speed limit were equipped with them.Clearly drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly.

A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than the drivers who do not
B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the sped limit regularly than are drivers who are not ticketed.
C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the period covered by the report.
E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

BR,
JB

Please read the rules before posting any questions. See the explanation for this question above.
_________________
Manager
Joined: 07 Dec 2009
Posts: 111
GMAT Date: 12-03-2014
Followers: 0

Kudos [?]: 29 [0], given: 375

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

19 Jan 2015, 01:53
The key word here is 'regularly'.

Director
Joined: 10 Mar 2013
Posts: 608
Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
GPA: 3.88
WE: Information Technology (Consulting)
Followers: 13

Kudos [?]: 250 [0], given: 200

A recent report determined that although only three percent [#permalink]

### Show Tags

17 Feb 2015, 13:53
I've missed the right answer... ans the best explanation I could find for this question (question type) is from Veritas: http://www.veritasprep.com/blog/2013/03 ... -question/

Solution:

Let’s look at the question stem first. We need to find an assumption. An assumption is a missing necessary premise. Something that will not only strengthen the conclusion but also be essential to the argument.
An assumption is a statement that needs to be added to the premises for the conclusion to be true. Let’s first find the premises and the conclusion of this argument.

Premises:

Conclusion:

Drivers with radar detectors are more likely to exceed the speed limit regularly than other drivers.

There must be some disconnect between the premises and conclusion since there is an assumption in the argument. Look carefully. Premises give you the connection between ‘vehicles that have radar detectors’ and ‘vehicles that get speeding tickets’. The conclusion, on the other hand, concludes a relation between ‘vehicles that have radar detectors’ and ‘vehicles that exceed the speed limit’. The assumption must then give a connection between ‘vehicles that get speeding tickets’ and ‘vehicles that exceed speed limit’.

To clarify it further,

A – vehicles that have radar detectors

B – vehicles that get speeding tickets/vehicles that were ticketed for speeding

C – vehicles that exceed the speed limit

Premises:

- Only 3% of all vehicles are A

- 33% of B are A

Conclusion:

- A are more likely to be C

The assumption needs to be something that links B to C i.e. that links ‘vehicles that get speeding tickets’

to ‘vehicles that exceed the speed limit’. Option (B) gives us that relation. It says ‘B are more likely to be C’.

Lets add it to premises and see if the conclusion makes more sense now:

- Drivers who get speeding tickets are more likely to exceed the speed limit regularly than others.

Conclusion: Drivers with radar detectors are more likely to exceed the speed limit regularly than other drivers.

Now it makes sense!
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

800Score ONLY QUANT CAT1 51, CAT2 50, CAT3 50
GMAT PREP 670
MGMAT CAT 630
KAPLAN CAT 660

Intern
Joined: 13 Nov 2014
Posts: 47
Location: United States
Concentration: Marketing, Finance
GMAT 1: 640 Q47 V30
GPA: 3.5
Followers: 0

Kudos [?]: 11 [0], given: 178

Re: A recent report determined that although only three percent [#permalink]

### Show Tags

07 May 2015, 20:44
stolyar wrote:
A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

The conclusion drawn above depends on which of the following assumptions?

(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.
(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.
(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

Ans B. The conclusion talks about drivers. and B bridges this gap. These drivers are responsible for the 33 % increase in ticketing. D seems to be attractive, but eliminate it since it doesnt talk about drivers.
Re: A recent report determined that although only three percent   [#permalink] 07 May 2015, 20:44

Go to page   Previous    1   2   3   4   5   6   7    Next  [ 129 posts ]

Similar topics Replies Last post
Similar
Topics:
A recent report determined that although only three percent 0 18 Mar 2012, 21:41
A recent report determined that although only three percent 0 09 Feb 2013, 00:35
A recent report determined that although only three percent 0 03 Nov 2009, 12:25
A recent report determined that although only three percent 0 13 Dec 2008, 16:36
A recent report determined that although only three percent 0 01 Jan 2007, 22:40
Display posts from previous: Sort by