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

number of light bulbs

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 15
Joined: Tue Jul 22, 2008 6:52 am
Thanked: 2 times
by Ad_Astra_Per_Aspera » Sat Jul 11, 2009 9:55 am
A number of light bulbs were purchased to illuminate a gym. However, only 2/3 of them were needed and 160 leftover light bulbs were returned. If only 60% of their cost, or $96, was reimbursed, how much money was spent on illuminating the gym?

A $160
B $320
C $360
D $372
E $384

I find the language of the question ambiguous. Also if you could put forward a quicker way to analyze and solve this question that would be great.

thanks
Top
Join the discussion
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 179
Joined: Mon Dec 29, 2008 4:41 am
Thanked: 2 times

by abhinav85 » Sat Jul 11, 2009 10:05 am
IMO E!!!
Top
Join the discussion
Legendary Member
Posts: 1035
Joined: Wed Aug 27, 2008 10:56 pmFollowed by: 1 member
Thanked: 104 times

by scoobydooby » Sat Jul 11, 2009 10:27 am
i get E as well.

let there be x bulbs. 1/3 of the bulbs were returned, given 1/3*x=160
x=480 bulbs

badly worded, but i take 60% of the cost of the returned items were reimbursed.
0.60*C=96
=>C=160
cost of 160 returned items=160
=> cost of each bulb=$1

total amount spent on the purchase of 480 bulbs= $480
amount reimbursed =$96
=> net amount spent $480-$96=$384
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 345
Joined: Wed Mar 18, 2009 6:53 pm
Location: Sao Paulo-Brazil
Thanked: 12 times
GMAT Score:660

by shibal » Sat Jul 11, 2009 10:45 am
in a sc section i'd go with the stem, since it's not clear if it's the amount after the 1st purchase or if it's after we get the 96 dollars back... since we don't have 480 in the answer options, E is the rght one....
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 15
Joined: Tue Jul 22, 2008 6:52 am
Thanked: 2 times

by Ad_Astra_Per_Aspera » Mon Jul 13, 2009 11:06 am
Yes E is the answer... thanks Shibal and Scoobydooby
Top
Join the discussion