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 →

Percentage Problem?

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Newbie | Next Rank: 10 Posts
Posts: 2
Joined: Thu Aug 09, 2007 11:47 am
by Atul Kumar » Mon Oct 08, 2007 5:46 pm
How could correct answer be 24%

"The output of a factory was increased by 10% to keep with rising demand. To handle holiday rush, this new output was increased by 20%. Approx. what percent would the putput now have to decrease in order to restore the original output? (PR 2007-2008 edition;page#70)?"

TIA,

Atul Kumar
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 98
Joined: Mon Jun 11, 2007 10:32 pm
Location: Mumbai

by ratindasgupta » Mon Oct 08, 2007 10:25 pm
well final output has become 132%. So if 132 has to reduce to 100, it has to go down to hundred it has to reduce by 32/132*100, ie approx 24.2%
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 184
Joined: Sat Apr 14, 2007 9:23 am
Location: Madison, WI
Thanked: 17 times

by ldoolitt » Tue Oct 09, 2007 5:45 am
Basically what the above poster said. Say the original sales value is 100. When you multiply that 100 by the first sales increase, the second sales increase and then the final sales decrease you should get back to 100.

100 * I1 * I2 * D1 = 100
I1 * I2 * D1 = 1
1.10 * 1.20 * D1 = 1
D1 = 1/(1.10 * 1.20) = 100/132 = .76
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 10
Joined: Mon Jun 11, 2007 2:12 amFollowed by: 1 member
Location: Mumbai, India

by Gunjan99 » Thu Oct 11, 2007 4:38 am
Let 100 be the initial o/p of company.
after 10% increase o/p will be (10/100 * 100 + 100) =110
afte 20% increse
o/p will be (20% of 110 + 110) ie 22+110 = 132.

now to restore the original o/p ie 100..
it has to go down to hundred it has to reduce by 32/132*100, ie approx 24.2%
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1