Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

4 x + y CANNOT be

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members
Location: India
Thanked: 267 times
GMAT Score:760
by sanju09 » Tue Nov 15, 2011 3:48 am
If x and y are integers and 2 x – y = 11, then 4 x + y CANNOT be
(A) -5
(B) 1
(C) 13
(D) 17
(E) 55
The mind is everything. What you think you become. –Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Join the discussion
Source: — Problem Solving |
User avatar
Community Manager
Posts: 1060
Joined: Fri May 13, 2011 6:46 amFollowed by: 52 members
Location: Utrecht, The Netherlands
Thanked: 318 times

by neelgandham » Tue Nov 15, 2011 3:50 am
If x and y are integers and 2 x - y = 11, then 4 x + y cannot be

2x -y = 11
4x -2y =22
4x +y = 22+3y

(A) -5 = 22+3y => 3y = -27 possible!
(B) 1 = 22+3y => 3y = -21 possible!
(C) 13 = 22+3y => 3y = -9 possible!
(D) 17 = 22+3y => 3y = -5 NOT possible!
(E) 55 = 22+3y => 3y = 33 possible

IMO D[spoiler][/spoiler]
Anil Gandham
Welcome to BEATtheGMAT | Photography | Getting Started | BTG Community rules | MBA Watch
Check out GMAT Prep Now’s online course at https://www.gmatprepnow.com/
Top
Join the discussion
Legendary Member
Posts: 966
Joined: Sat Jan 02, 2010 8:06 amFollowed by: 21 members
Thanked: 230 times

by shankar.ashwin » Tue Nov 15, 2011 4:01 am
2 x - y = 11
4 x + y = A (A- some number)

Adding, we have 6x = 11+A (or) 11+(answer choice) should be multiple of 6.

A,B,C and E when added with 11 are multiples of 6. D isn't.
Top
Join the discussion
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members
Location: India
Thanked: 267 times
GMAT Score:760

by sanju09 » Tue Nov 15, 2011 4:06 am
neelgandham wrote:If x and y are integers and 2 x - y = 11, then 4 x + y cannot be

2x -y = 11
4x -2y =22
4x +y = 22+3y

(A) -5 = 22+3y => 3y = -27 possible!
(B) 1 = 22+3y => 3y = -21 possible!
(C) 13 = 22+3y => 3y = -9 possible!
(D) 17 = 22+3y => 3y = -5 NOT possible!
(E) 55 = 22+3y => 3y = 33 possible

IMO D[spoiler][/spoiler]
Excellent!! But why do we need to check beyond (D)?
The mind is everything. What you think you become. –Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Join the discussion
User avatar
Community Manager
Posts: 1060
Joined: Fri May 13, 2011 6:46 amFollowed by: 52 members
Location: Utrecht, The Netherlands
Thanked: 318 times

by neelgandham » Tue Nov 15, 2011 4:10 am
sanju09 wrote:Excellent!! But why do we need to check beyond (D)?
I have done it just for the benefit of the readers(fellow BTGians). On the D-Day, I would have stopped it at D right away.
Anil Gandham
Welcome to BEATtheGMAT | Photography | Getting Started | BTG Community rules | MBA Watch
Check out GMAT Prep Now’s online course at https://www.gmatprepnow.com/
Top
Join the discussion
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members
Location: India
Thanked: 267 times
GMAT Score:760

by sanju09 » Tue Nov 15, 2011 4:43 am
neelgandham wrote:
sanju09 wrote:Excellent!! But why do we need to check beyond (D)?
I have done it just for the benefit of the readers(fellow BTGians). On the D-Day, I would have stopped it at D right away.
right
The mind is everything. What you think you become. –Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Join the discussion