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.

help me please.!!!

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Senior | Next Rank: 100 Posts
Posts: 48
Joined: Sun Jul 17, 2011 12:04 am
by shikh » Sat Nov 12, 2011 12:30 am
A group of 10 people plan to contribute equally to pay fora friend's gift that costs G dollars. If nadditional people want to contribute to pay for the gift, the required contribution per person will be reduced by how many dollars?
(A)Gn/100+10n
(B)10+n/Gn
(C)10G+Gn/n
(D)Gn+10G/GN-10
(E)10G/n^2+10n :roll:
answer after discussion...[/img]
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Legendary Member
Posts: 966
Joined: Sat Jan 02, 2010 8:06 amFollowed by: 21 members
Thanked: 230 times

by shankar.ashwin » Sat Nov 12, 2011 12:41 am
Just substitute easy numbers.

Let the gift cost $100, so initially everyone pays $10 each.

Let n = 10 (10 additional people contribute), the cost per head now will be 100/20 = $5.

Sub G = 100 and n = 10 in the answer choices, you should get 5 as answer. Only A satisfies IMO.

Infact you could even use smaller numbers.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 516
Joined: Fri Jul 31, 2009 3:22 pmFollowed by: 13 members
Thanked: 112 times

by smackmartine » Sat Nov 12, 2011 12:47 am
IMO A
Cost of the gift = G
Total people initially = 10
Cost per head = G/10

Extra people who want to contribute = n
So, total # of people = 10+n
Cost per head now= G/(10+n)

Notice that G/10 > G/(10+n) [now each person has to contribute less]

So, contribution per person will be reduced = [G/10]- [G/(10+n)] = Gn/10(10+n)=Gn/100+10n
Smack is Back ...
It takes time and effort to explain, so if my comment helped you please press Thanks button :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 92
Joined: Thu Oct 06, 2011 8:06 am
Thanked: 18 times

by Neo Anderson » Sat Nov 12, 2011 2:31 am
Clearly A
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 48
Joined: Sun Jul 17, 2011 12:04 am

by shikh » Sat Nov 12, 2011 10:53 pm
thanks a lot..
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1