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 →

Ratio question

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 59
Joined: Mon Mar 10, 2008 3:23 amFollowed by: 1 member
Thanked: 2 times

by Magellan » Thu May 15, 2008 12:23 am
Total hours of television watched: 60 x 0.5 = 30 hours

SO, when we evaluate the ratios, the need to be 'compatible' with a total of 30 hours. It means that we should be able to find integers N & R such as N x 2 + R x 1.5 = 30

1) 3 x 2 / 16 x 1.5 = 6/24 --> Compatible (N=3, R=16)

2) 1 x 2 / 2 x 1.5 = 2/3 = 12/18 --> Compatible (N=6, R=12)

3) 2 x 2 / 3 x 1.5 = 4/4.5 --> Not compatible

4) 9 x 2 / 8 x 1.5 = 18/12 --> Compatible (N=9, R=8 )

5) 3x2 / 1x1.5 = 6/1.5 = 24/6 --> Compatible (N=12, R=4)

Let me know if unclear
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 631
Joined: Mon Feb 18, 2008 11:57 pmFollowed by: 3 members
Thanked: 29 times

by netigen » Thu May 15, 2008 8:25 am
From the question we know

2n + 1.5r = 30

OR 4n+3r=60

lets say n/r = x --> this is what we need to find

n = rx (substitute for n in the eq above)

4rx+3r=60

r(4x+3)=60

Now plug in all the answer choices for x and find out choice for which r is not an integer

x=3/16 gives r=16
x=1/2 gives r=12
x=2/3 gives r=180/11 ---> this is your answer
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1