• Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer

OG 11 DS problem

This topic has 2 member replies
pavithra Junior | Next Rank: 30 Posts Default Avatar
Joined
18 Jan 2007
Posted:
24 messages

OG 11 DS problem

Post Wed Mar 14, 2007 1:21 pm
This problem is in the DS section (QN. no.146) of OG11.

Is n an integer?

1) n^2 is an integer
2) sq. rt of n is an integer

The answer given is B.

If n^2 is an integer, n should also be an integer , right??? Shouldn't the answer be D.

Someone please explain.

Thanks
Pavithra

  • +1 Upvote Post
  • Quote
  • Flag
Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
pavithra Junior | Next Rank: 30 Posts Default Avatar
Joined
18 Jan 2007
Posted:
24 messages
Top Reply
Post Wed Mar 14, 2007 7:13 pm
Right I get it now...Thanks

  • +1 Upvote Post
  • Quote
  • Flag
rajesh_ctm Master | Next Rank: 500 Posts Default Avatar
Joined
27 Feb 2007
Posted:
135 messages
Upvotes:
2
Top Reply
Post Wed Mar 14, 2007 5:40 pm
If n^2 is an integer, n should also be an integer , right???

Not necessary. Fitting in numbers is the easiest method to verify. Root of 2 is not an integer. But its square, i.e. 2 is an integer.

  • +1 Upvote Post
  • Quote
  • Flag

Best Conversation Starters

1 lheiannie07 112 topics
2 swerve 64 topics
3 LUANDATO 64 topics
4 ardz24 61 topics
5 AAPL 57 topics
See More Top Beat The GMAT Members...

Most Active Experts

1 image description Scott@TargetTestPrep

Target Test Prep

227 posts
2 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

176 posts
3 image description Jeff@TargetTestPrep

Target Test Prep

168 posts
4 image description Rich.C@EMPOWERgma...

EMPOWERgmat

138 posts
5 image description GMATGuruNY

The Princeton Review Teacher

129 posts
See More Top Beat The GMAT Experts