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

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

gmat prep32

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 468
Joined: Sat Mar 03, 2007 10:17 pm
Thanked: 5 times

by moneyman » Tue Nov 13, 2007 8:43 pm
Since its a DS question we dont have to solve it.We just have to find the value of n in the sequence of the eleven numbers.

(1) says that (n+(n+1)+(n+2)..(n+8))/9=7 or n+(n+1)..+(n+8)=63 . From this we can find out that 9n+36=63.Hence here the value of n or the first number can be found out.SUFFICIENT

(2) says that ((n+10)+(n+9)+..+(n+2))/9=9.Solve in the same way to get the value of n.SUFFICIENT.

So D

Is it clear??
Maxx
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 106
Joined: Tue Oct 09, 2007 12:25 pm
Thanked: 1 times

by xcise_science » Wed Nov 14, 2007 6:58 am
It makes perfect sense...I didn't think to use the "(n+(n+1)+(n+2)..(n+9)" iterations.

I'll keep that in mind!

Also, when the question says ‘consecutive’, how do we know its +1 (or -1), I thought consecutive meant evenly spaced numbers?
So, you can have consecutive odd, even, tens etc….or is that not accurate?

Thanks!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 468
Joined: Sat Mar 03, 2007 10:17 pm
Thanked: 5 times

by moneyman » Thu Nov 15, 2007 6:31 am
Well unless anything is mentioned about the type of integers I assume we can take consecutive positive integers!!
Maxx
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1