It is currently 20 Sep 2020, 22:34
My Tests

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

n is a positive integer, x = 7n + 2, and y = 6n + 3.

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Retired Moderator
User avatar
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 171

Kudos [?]: 2914 [1] , given: 394

n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 10 May 2016, 07:20
1
This post received
KUDOS
Expert's post
00:00

Question Stats:

78% (00:56) correct 21% (00:51) wrong based on 190 sessions
n is a positive integer, \(x = 7n + 2\), and \(y = 6n + 3\).

Quantity A
Quantity B
The ones digit of x + y
5


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.




Practice Questions
Question: 3
Page: 62
[Reveal] Spoiler: OA

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

4 KUDOS received
Retired Moderator
User avatar
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 171

Kudos [?]: 2914 [4] , given: 394

Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 10 May 2016, 07:25
4
This post received
KUDOS
Expert's post
Explanation

In the question, you are given that x = 7n + 2 and y = 6n + 3. Substituting the given expressions for x and y in Quantity A, you get x + y = 13n + 5.

Using trial and error, you can compare Quantity A, the ones digit of 13n + 5, and Quantity B, 5, by plugging in a few values for the positive integer n.

If n = 1, then x + y = 18 and the ones digit is 8, which is greater than 5. So in this case Quantity A is greater than Quantity B.
If n = 2, then x + y = 31 and the ones digit is 1, which is less than 5. So in this case Quantity B is greater than Quantity A.

Since in one case Quantity A is greater than Quantity B, and in the other case Quantity B is greater than Quantity A, you can conclude that the correct answer is Choice D.
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

1 KUDOS received
Manager
Manager
Joined: 23 Jan 2016
Posts: 133
Followers: 4

Kudos [?]: 149 [1] , given: 15

Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 14 May 2016, 22:00
1
This post received
KUDOS
x + y = 13n + 5.

if n = 10 then the unit digit will be 5 and if n=1 the unit digit will be 8

So the answer is D
2 KUDOS received
Intern
Intern
Joined: 24 Feb 2018
Posts: 13
Followers: 0

Kudos [?]: 9 [2] , given: 6

Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 24 Feb 2018, 18:56
2
This post received
KUDOS
sandy wrote:
n is a positive integer, x = 7n + 2, and y = 6n + 3.

Quantity A
Quantity B
The ones of x + y
5


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.




Practice Questions
Question: 3
Page: 62


Substitute 1 and the statement becomes equal. Substitute 2 then B is greater than A.
Ans - D
booyah!
1 KUDOS received
Intern
Intern
Joined: 04 Jul 2018
Posts: 4
Followers: 1

Kudos [?]: 10 [1] , given: 3

Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 05 Jul 2018, 14:52
1
This post received
KUDOS
Why did they just word this "the ones"? I had no idea what exactly it was asking for.
1 KUDOS received
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 13310
Followers: 286

Kudos [?]: 3372 [1] , given: 12174

CAT Tests
Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 06 Jul 2018, 09:51
1
This post received
KUDOS
Expert's post
I think you are perfectly right. The "ones" has little sense even to me.

The right wording should be "the unit digit"

Regards
_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests.

Manager
Manager
Joined: 08 Dec 2018
Posts: 94
Followers: 0

Kudos [?]: 44 [0], given: 30

Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 10 Mar 2019, 06:58
improper wording leads to error as well as wastage of time. So, kindly use precise words
1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 3826
Followers: 148

Kudos [?]: 4471 [1] , given: 69

CAT Tests
Re: n is a positive integer, x = 7n + 2, and y = 6n + 3. [#permalink] New post 10 Mar 2019, 08:24
1
This post received
KUDOS
Expert's post
I have changed "ones" to "units digit"

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
If you enjoy my solutions, you'll like my GRE prep course.
Image
Sign up for GRE Question of the Day emails

Re: n is a positive integer, x = 7n + 2, and y = 6n + 3.   [#permalink] 10 Mar 2019, 08:24
Display posts from previous: Sort by

n is a positive integer, x = 7n + 2, and y = 6n + 3.

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.