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 →

GPREP2 -DS

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Senior | Next Rank: 100 Posts
Posts: 42
Joined: Fri Mar 14, 2008 1:56 am
Location: India
Thanked: 4 times
GMAT Score:730
by getneonow » Mon Jun 30, 2008 4:30 am
Hi guys

Stuck with this DS.

first i thought i didn't understand the question clearly. but after rereading i came up with the following explanation. Will appreciate if you let me know where i am going wrong in my approach.


We do not know the actual number of people in group. Lets say if 10 is the number of people in group then asked is the avg of n people (1<=n<10> n/3 =1 => tallest person height is given. And total avg of group is given => we can get height of remaining 9 members. But qn asked is to calculate avg of n i.e 3 people here..which 3 people? First 3 or second 3..so on till last 3? or any 3 people in 10 group.

That is why i marked E..

but OA is A. how is statement 1 suff??

Thanks
Neo
Attachments
DS.jpg
GPREP_DS
MBA : My passion and My pursuit
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |
User avatar
Legendary Member
Posts: 543
Joined: Fri Jan 18, 2008 1:01 am
Thanked: 43 times
GMAT Score:580

by codesnooker » Mon Jun 30, 2008 4:50 am
I am not sure with my understanding the language of the question, but statement (1) ends by stating that the average height of the group is 5 feet and 10 inches. What does that mean? Isn't itself telling the answer.

But I feel, GMAT question is not that much simple, I must messed up somewhere with the language. Hell, GMAT people ask to make concise and clear sentences in SC, can't they itself be clear enough in the question...... :twisted:
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 42
Joined: Fri Mar 14, 2008 1:56 am
Location: India
Thanked: 4 times
GMAT Score:730

by getneonow » Mon Jun 30, 2008 5:49 am
codesnooker..

the way you interpreted makes the qn much simpler..infact its not even a qn if you were assumption were to be true..coz the answer is already stated in (1)..

did you read my explanation?

i think the qn says that there is a group with N number of people and out of those N, the avg height of some n people is asked.

you have assumed N = n but its not..

n is NOT the total number of people in the group.

now you may want to give this qn a try again :)

Neo
MBA : My passion and My pursuit
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 42
Joined: Fri Mar 14, 2008 1:56 am
Location: India
Thanked: 4 times
GMAT Score:730

by getneonow » Mon Jun 30, 2008 9:11 pm
no one can answer this?? :shock:
MBA : My passion and My pursuit
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 167
Joined: Tue Apr 22, 2008 12:48 am
Thanked: 15 times

by durgesh79 » Mon Jun 30, 2008 9:49 pm
neo : i noticed the horizontal scroll bar in the pic posted by you. i feel there are few words missing in statement 1. It should have been.

1) The average heigh of the n/3 tallest people in the group is 6 feet 2.5 inches, and the average height of the rest of the people in the group is 5 feet 10 inches.

now it should be possible.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 167
Joined: Tue Apr 22, 2008 12:48 am
Thanked: 15 times

by durgesh79 » Mon Jun 30, 2008 9:52 pm
and i think N=n.

found another thread on the same question https://www.beatthegmat.com/averages-t10427.html#42150
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 42
Joined: Fri Mar 14, 2008 1:56 am
Location: India
Thanked: 4 times
GMAT Score:730

by getneonow » Mon Jun 30, 2008 10:17 pm
durgesh..

ohh..what a catch man !! :)

how did i overlook scrolling the horizontal bar during my GPREP exam??

obviously now the question is a peanut to crack..

2/3(6.xx) + 1/3(5.xx)

so (1) will be the answer..

damn..i missed my 51 in quant :(

Thanks anyways
Neo
MBA : My passion and My pursuit
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1