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 →

If 1,500 is increased by 20% and then reduced by \(y\%,\) yielding 1,080, what is \(y ?\)

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Legendary Member
Posts: 2898
Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members
Thanked: 6 times
by Vincen » Sat May 30, 2020 2:23 pm

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty—

If 1,500 is increased by 20% and then reduced by \(y\%,\) yielding 1,080, what is \(y ?\)

(A) 20
(B) 30
(C) 40
(D) 50
(E) 60

[spoiler]OA=C[/spoiler]

Source: Manhattan GMAT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Junior | Next Rank: 30 Posts
Posts: 15
Joined: Sat May 30, 2020 10:48 pm

Re: If 1,500 is increased by 20% and then reduced by \(y\%,\) yielding 1,080, what is \(y ?\)

by orthodoxparadox » Sat May 30, 2020 11:41 pm
When 1500 is increased by 20% it becomes \(\frac{120}{100}\ \cdot\ 1500\ =\ 1800\)

Now when 1800 is decreased by y% it becomes 1080.

So $$\frac{\left(100\ -\ y\right)}{100}\ \cdot\ 1800\ =\ 1080$$
\(\left(100\ -\ y\right)\ \cdot\ 18\ =\ 1080\) $$\left(100\ -\ y\right)=\ \frac{1080}{18}\ =\ 60$$ $$y\ =\ 40$$ C
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1