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
GMATBootcamp Starts Sep 28
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE BOOTCAMP

Live Online Bootcamp Class with Top GMAT Expert Chris Peckover

15 live classes from Sep 28, 2026

Schedule
Mon to Fri · 7:00 to 10:00 PM ET
Included
Live classes + 6 months of TTP OnDemand
  • Boost your GMAT score in less than one month in a live online class
  • 6 months access to TTP OnDemand video courses included
View bootcamp & 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.

171

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 226
Joined: Thu Nov 25, 2010 12:19 amFollowed by: 2 members
Thanked: 3 times
by nafiul9090 » Sat Apr 16, 2011 10:17 am
What is the difference between the sixth and the fi fth
terms of the sequence 2, 4, 7, ... whose nth term is
n + 2^n - 1 ?
(A) 2
(B) 3
(C) 6
(D) 16
(E) 17

here 1st term = 2
2nd= 4
3rd=7
4th=11
5th= 16
6th= 22


in that case the difference between 5th and 6th terms is 22-16=6

wht am i missing???
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 965
Joined: Thu Jan 28, 2010 12:52 amFollowed by: 34 members
Thanked: 156 times
GMAT Score:720

by vineeshp » Sat Apr 16, 2011 10:34 am
Check the math again. I am assuming that the -1 is in the power.

If -1 is in the power.
2nd term is 2 + 2^2-1 = 2 + 2^1 = 4.
4th term is 4 + 2^3 = 12.

If -1 is in the expression
2nd term is 2 + 2^2-1 = 2 + 4 - 1 = 5. I dont think it is in the expression. So I think ur calculation for 4th term is wrong.
Vineesh,
Just telling you what I know and think. I am not the expert. :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Junior | Next Rank: 30 Posts
Posts: 21
Joined: Wed Feb 09, 2011 8:19 pmFollowed by: 6 members
Thanked: 2 times

by arunpanda22 » Sat Apr 16, 2011 7:29 pm
why work soo much
formula given is n+2^n-1
fifth term= 5+2^4
sixth term= 6+2^5
difference=6+32-5-16=1+16=17
so ans is e
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1