BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

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.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
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
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start 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 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

og 133 number properties

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Junior | Next Rank: 30 Posts
Posts: 21
Joined: Wed Apr 28, 2010 12:11 pm
by mepinoargote » Fri Aug 27, 2010 6:37 pm
Are all the numbers in a certain list of 15 numbers equal?
(1) The sum of all the numbers in the list is 60
(2) The sum of any 3 numbers in the list is 12

Statement one is easy to evaluate, but what approach should i take with (2)?? The official guide answer is way too long and confusing, please help!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |
User avatar
Junior | Next Rank: 30 Posts
Posts: 21
Joined: Wed Apr 28, 2010 12:11 pm

by mepinoargote » Fri Aug 27, 2010 7:10 pm
Thanks for your help!!!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1309
Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members
Thanked: 33 times

by pradeepkaushal9518 » Fri Aug 27, 2010 7:11 pm
all numbers are equal in the list of 15 numbers

1.usm of all number is 60

suppose no is x so x+x+.......15 times = 15x=60
x= 4
sufficients

2.sum of any 3 number is 12

suppose each no is x so sum of any 3 nos will be x+x+x=3x so given that 3x=12 x= 4

sufficient

imo D
A SMALL TOWN GUY
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 659
Joined: Mon Dec 14, 2009 8:12 amFollowed by: 3 members
Thanked: 32 times

by Gurpinder » Fri Aug 27, 2010 7:12 pm
mepinoargote wrote:Are all the numbers in a certain list of 15 numbers equal?
(1) The sum of all the numbers in the list is 60
(2) The sum of any 3 numbers in the list is 12

Statement one is easy to evaluate, but what approach should i take with (2)?? The official guide answer is way too long and confusing, please help!
They keyword for statement 2 is that ANY 3 numbers = 12

All numbers in the list can = 4. How? Because Avg*15=60 --> 4

so 4,4,4,4,4,4,4,4.....

if you change the 4 into any other number, you cannot get 12

So all the numbers must be equal. SUFFICIENT.
"Do not confuse motion and progress. A rocking horse keeps moving but does not make any progress."
- Alfred A. Montapert, Philosopher.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 659
Joined: Mon Dec 14, 2009 8:12 amFollowed by: 3 members
Thanked: 32 times

by Gurpinder » Fri Aug 27, 2010 7:15 pm
pradeepkaushal9518 wrote:all numbers are equal in the list of 15 numbers

1.usm of all number is 60

suppose no is x so x+x+.......15 times = 15x=60
x= 4
sufficients

2.sum of any 3 number is 12

suppose each no is x so sum of any 3 nos will be x+x+x=3x so given that 3x=12 x= 4

sufficient

imo D
No buddy! The answer is (B).

Stmt 1:

Your right! We can get all 4's.

But we can get different numbers as well which will give you a 60 sum. But they wont be equal.

for example 1,1,1,1,1,1,1,1,1,1,1,1,1,1,46.... = 60 but all the numbers are not the same!
"Do not confuse motion and progress. A rocking horse keeps moving but does not make any progress."
- Alfred A. Montapert, Philosopher.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1309
Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members
Thanked: 33 times

by pradeepkaushal9518 » Fri Aug 27, 2010 7:22 pm
ok its my mistake
A SMALL TOWN GUY
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1