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 →

Range of heights

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 26
Joined: Thu Oct 25, 2012 2:08 pm
by ostrowskiamy » Mon Feb 18, 2013 5:10 pm
"For kids in Class A, the range of heights is r, and the greatest height is g centimeters. For students in B, the range is s, and the height is h. Is the least height of kids in A greater than the least height of kids in B?

(1) r < s
(2) g>h

My answer was "E." The correct answer is "C." How do I obtain sufficiency when combining both statements?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Mon Feb 18, 2013 10:49 pm
ostrowskiamy wrote:"For kids in Class A, the range of heights is r, and the greatest height is g centimeters. For students in B, the range is s, and the height is h. Is the least height of kids in A greater than the least height of kids in B?

(1) r < s
(2) g > h
I assume it'll be "...the greatest height is h."

Now, let us assume that least height of kids in A and B are respectively a and b.

Hence, r = (g - a) and s = (h - b)
Hence, a = (g - r) and b = (h - s)

We need to determine whether a > b or not, i.e. (g - r) > (h - s) or not.

Clearly none of the statements are individually sufficient.

1 & 2 Together: We know r < s and g > h and r, s, g, and h all are positive quantities.
Hence, (g - r) > (h - r) and (h - r) > (h - s)
Hence, (g - r) > (h - s)
Hence, a > b

Sufficient

The correct answer is C.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1