It is currently 23 Oct 2017, 23:37

### 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

# Which is greater?

Author Message
TAGS:
Manager
Joined: 20 May 2014
Posts: 132
Followers: 5

Kudos [?]: 25 [0], given: 95

Which is greater? [#permalink]  01 Oct 2017, 04:39
00:00

Difficulty:

5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
 Quantity A Quantity B 10x+2 2x+10

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

Kudos for correct solution.
[Reveal] Spoiler: OA
Manager
Joined: 20 Apr 2016
Posts: 209
Followers: 1

Kudos [?]: 122 [1] , given: 52

Re: Which is greater? [#permalink]  01 Oct 2017, 06:52
1
KUDOS
Bunuel wrote:
 Quantity A Quantity B 10x+2 2x+10

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

Kudos for correct solution.

No information is given for x and it can be fraction or real number, so option D
_________________

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

Manager
Joined: 20 May 2014
Posts: 132
Followers: 5

Kudos [?]: 25 [0], given: 95

Re: Which is greater? [#permalink]  01 Oct 2017, 06:56
pranab01 wrote:
Bunuel wrote:
 Quantity A Quantity B 10x+2 2x+10

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

Kudos for correct solution.

No information is given for x and it can be fraction or real number, so option D

Real numbers include fractions, irrational numbers and integers. I think you meant "integer" instead. But even if we were given that x is a non-integer (a fraction or an irrational number) or integer, the answer still would be D.
Manager
Joined: 20 Apr 2016
Posts: 209
Followers: 1

Kudos [?]: 122 [0], given: 52

Re: Which is greater? [#permalink]  01 Oct 2017, 07:39
Bunuel wrote:
pranab01 wrote:
Bunuel wrote:
 Quantity A Quantity B 10x+2 2x+10

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

Kudos for correct solution.

No information is given for x and it can be fraction or real number, so option D

Real numbers include fractions, irrational numbers and integers. I think you meant "integer" instead. But even if we were given that x is a non-integer (a fraction or an irrational number) or integer, the answer still would be D.

yes. you are right. Apology for the typo mistake.
_________________

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

Senior Manager
Joined: 03 Sep 2017
Posts: 409
Followers: 0

Kudos [?]: 124 [0], given: 64

Re: Which is greater? [#permalink]  01 Oct 2017, 07:41
Bunuel wrote:
pranab01 wrote:
Bunuel wrote:
 Quantity A Quantity B 10x+2 2x+10

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

Kudos for correct solution.

No information is given for x and it can be fraction or real number, so option D

Real numbers include fractions, irrational numbers and integers. I think you meant "integer" instead. But even if we were given that x is a non-integer (a fraction or an irrational number) or integer, the answer still would be D.

If we rearrange we are left with quantity A being 8x and quantity B being 8. Then, since there are no restrictions about x, it can be whatever.
E.g. if x = 1, then the two quantities are equal
if x = -2, then quantity B is greater
if x = 2, then quantity A is greater.

GRE Instructor
Joined: 10 Apr 2015
Posts: 638
Followers: 29

Kudos [?]: 450 [1] , given: 3

Re: Which is greater? [#permalink]  05 Oct 2017, 10:44
1
KUDOS
Expert's post
Bunuel wrote:
 Quantity A Quantity B 10x+2 2x+10

We can solve this question using matching operations

Given:
Quantity A: 10x + 2
Quantity B: 2x + 10

Subtract 2x from both quantities to get:
Quantity A: 8x + 2
Quantity B: 10

Subtract 2 from both quantities to get:
Quantity A: 8x
Quantity B: 8

Divide both quantities by 8 to get:
Quantity A: x
Quantity B: 1

Since we have no information about x, quantity A COULD be greater than, less than or equal to quantity B
[Reveal] Spoiler:
D

RELATED VIDEO FROM OUR COURSE

_________________

Brent Hanneson – Founder of greenlighttestprep.com

Check out the online reviews of our course

Re: Which is greater?   [#permalink] 05 Oct 2017, 10:44
Display posts from previous: Sort by