 It is currently 15 Jun 2019, 20:32 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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here. 2x + 3y = 10  Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Founder  Joined: 18 Apr 2015
Posts: 6866
Followers: 114

Kudos [?]: 1326 , given: 6284

2x + 3y = 10 [#permalink]
Expert's post 00:00

Question Stats: 84% (00:28) correct 15% (00:47) wrong based on 13 sessions
$$2x + 3y = 10$$

$$x + 2y = 8$$

 Quantity A Quantity B $$x + y$$ $$2$$

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.
[Reveal] Spoiler: OA

_________________ Intern  Joined: 04 May 2017
Posts: 36
Followers: 0

Kudos [?]: 26  , given: 6

Re: 2x + 3y = 10 [#permalink]
1
KUDOS
Solve the system of equations, then y=6 and x=-4.

Thus x+y=2 -> C
_________________

Do not pray for an easy life, pray for the strength to endure a difficult one - Bruce Lee

GRE Instructor Joined: 10 Apr 2015
Posts: 1958
Followers: 60

Kudos [?]: 1790 , given: 9

Re: 2x + 3y = 10 [#permalink]
Expert's post
Carcass wrote:
$$2x + 3y = 10$$

$$x + 2y = 8$$

 Quantity A Quantity B $$x + y$$ $$2$$

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.

Here's A DIFFERENT APPROACH

Since quantity A = x + y, we don't need to actually solve the given system for the individual values of x and y.

Given:
2x + 3y = 10
x + 2y = 8

Subtract the bottom equation from the top equation to get: x + y = 2

We get:
Quantity A: 2
Quantity B: 2

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com  Re: 2x + 3y = 10   [#permalink] 07 Jun 2019, 06:20
Display posts from previous: Sort by

2x + 3y = 10  Question banks Downloads My Bookmarks Reviews Important topics 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®.