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
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 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
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
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 Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget 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.

number properties

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Legendary Member
Posts: 627
Joined: Thu Jun 23, 2011 9:12 amFollowed by: 1 member
Thanked: 4 times

by mankey » Thu Jan 12, 2012 9:59 am
Should be B. Whats the OA?

Number will be 2543 since 5-2=3 (This is the only number that satisfies the given conditions).

Thanks.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 385
Joined: Fri Sep 23, 2011 9:02 pmFollowed by: 6 members
Thanked: 62 times

by user123321 » Thu Jan 12, 2012 10:26 am
sud21 wrote:X=2.543*10^K, where k is an integer, what is the thousandth digit of x?
1). The hundredth digit of x is 0
2). Hundredth digit minus thousandth digit is 3
1) hundredth digit of x is 0.
we dont know anything about k whether it is +ve or -ve. so insuff.

2) this can happen only when k = 1 then 3-0 = 3.
hence suff.

[spoiler]is it B?[/spoiler]

user123321
Just started my preparation :D
Want to do it right the first time.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 102
Joined: Thu Jul 21, 2011 2:22 amFollowed by: 1 member
Location: Lahore, Pakistan
Thanked: 4 times

by chufus » Thu Jan 12, 2012 10:36 am
user123321 wrote:
sud21 wrote:X=2.543*10^K, where k is an integer, what is the thousandth digit of x?
1). The hundredth digit of x is 0
2). Hundredth digit minus thousandth digit is 3
1) hundredth digit of x is 0.
we dont know anything about k whether it is +ve or -ve. so insuff.

2) this can happen only when k = 1 then 3-0 = 3.
hence suff.

[spoiler]is it B?[/spoiler]

user123321
The answer should be B but i think you are subtracting the wrong nos.. It should be 5- 2 = 3

Otherwise it would have to be 0 -3 = -3 not 3.

the number will be 2543

Its the hundredth digit minus the thousands digit. So K will have to be 3 for 2.543 to become 2543 and only then will the difference be 3
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 385
Joined: Fri Sep 23, 2011 9:02 pmFollowed by: 6 members
Thanked: 62 times

by user123321 » Thu Jan 12, 2012 10:46 am
chufus wrote:
user123321 wrote:
sud21 wrote:X=2.543*10^K, where k is an integer, what is the thousandth digit of x?
1). The hundredth digit of x is 0
2). Hundredth digit minus thousandth digit is 3
1) hundredth digit of x is 0.
we dont know anything about k whether it is +ve or -ve. so insuff.

2) this can happen only when k = 1 then 3-0 = 3.
hence suff.

[spoiler]is it B?[/spoiler]

user123321
The answer should be B but i think you are subtracting the wrong nos.. It should be 5- 2 = 3

Otherwise it would have to be 0 -3 = -3 not 3.

the number will be 2543

Its the hundredth digit minus the thousands digit. So K will have to be 3 for 2.543 to become 2543 and only then will the difference be 3
Hi

2.543 * 10 = 25.430
in this hundredths digit is 3 and thousandths digit is 0
so hundredths - thousandths = 3 - 0 = 3

Please let me know if my logic is wrong.

Thanks,
user123321
Just started my preparation :D
Want to do it right the first time.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1