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

between 10^6 and 10^7

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 Feb 24, 2009 4:52 am
How many different positive integers exist between 10^6 and 10^7, the sum of whose digits is equal to 2?

A. 6
B. 7
C. 5
D. 8
E. 18
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
Master | Next Rank: 500 Posts
Posts: 319
Joined: Wed Feb 04, 2009 10:32 amFollowed by: 9 members
Location: Delhi
Thanked: 84 times

by sureshbala » Tue Feb 24, 2009 5:24 am
Clearly the number must be a 7 digit number only.

Fixing the first digit as, we can place another 1 in any of the other 6 places available. So we have 6 numbers in this case.

The other possible number is 2 followed by six 0's. (this is what most of you miss out in the exam)

Hence totally 7 numbers are possible.
Top
Join the discussion
User avatar
Site Admin
Posts: 2567
Joined: Thu Jan 01, 2009 10:05 amFollowed by: 550 members
Thanked: 712 times
GMAT Score:770

by DanaJ » Tue Feb 24, 2009 5:36 am
sureshbala wrote:Clearly the number must be a 7 digit number only.

Fixing the first digit as 1, we can place another 1 in any of the other 6 places available. So we have 6 numbers in this case.

The other possible number is 2 followed by six 0's. (this is what most of you miss out in the exam)

Hence totally 7 numbers are possible.
You missed 1.
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 Feb 24, 2009 5:41 am
DanaJ wrote:
sureshbala wrote:Clearly the number must be a 7 digit number only.

Fixing the first digit as 1, we can place another 1 in any of the other 6 places available. So we have 6 numbers in this case.

The other possible number is 2 followed by six 0's. (this is what most of you miss out in the exam)

Hence totally 7 numbers are possible.
You missed 1.
Where, DanaJ?
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
Junior | Next Rank: 30 Posts
Posts: 29
Joined: Sun Feb 08, 2009 11:29 am
Thanked: 3 times

by ven4gmat » Tue Feb 24, 2009 5:43 am
DanaJ wrote:
sureshbala wrote:Clearly the number must be a 7 digit number only.

Fixing the first digit as 1, we can place another 1 in any of the other 6 places available. So we have 6 numbers in this case.

The other possible number is 2 followed by six 0's. (this is what most of you miss out in the exam)

Hence totally 7 numbers are possible.
You missed 1.
I am sure he did not miss any number. We cannot have more than 7 numbers...Can you provide your logic please
Top
Join the discussion
User avatar
Site Admin
Posts: 2567
Joined: Thu Jan 01, 2009 10:05 amFollowed by: 550 members
Thanked: 712 times
GMAT Score:770

by DanaJ » Tue Feb 24, 2009 5:48 am
:))
Really funny, guys... I was saying that he missed "1" in row 2 of his explanation..... You guys thought I was talking about another number...
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 Feb 24, 2009 5:53 am
DanaJ wrote::))
Really funny, guys... I was saying that he missed "1" in row 2 of his explanation..... You guys thought I was talking about another number...
O I C :lol:
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
Master | Next Rank: 500 Posts
Posts: 226
Joined: Tue Jan 13, 2009 1:27 pmFollowed by: 1 member
Thanked: 23 times

by awesomeusername » Tue Feb 24, 2009 4:02 pm
Yup, I got 7.
1000001
1000010
1000100
1001000
1010000
1100000
2000000
Constant dripping hollows out a stone.
-Lucretius
Top
Join the discussion