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shashank.ism: Legendary Member; Posts: 1022; Joined: Mon Jul 20, 2009 11:49 pmFollowed by: 2 members; Location: Gandhinagar; Thanked: 41 times

by shashank.ism » Mon Feb 08, 2010 9:14 am

Let m be the largest positive term of an harmonic progression whose first two terms are 2/5 and 4/9.
A real number r satisfying m/2-1/n < r <= m+1/n, for every positive integer n, is best described by:

a) 1 < r < 5
b) 2 < r <= 4
c) 1 < r <= 5
d) 2 <= r <= 4
e) none of these

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Source: Beat The GMAT — Problem Solving | Mon Feb 08, 2010 9:14 am

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members; Location: Vancouver, BC; Thanked: 5254 times; GMAT Score:770

by Brent@GMATPrepNow » Mon Feb 08, 2010 9:50 am

shashank.ism wrote:Let m be the largest positive term of an harmonic progression whose first two terms are 2/5 and 4/9.
A real number r satisfying m/2-1/n < r <= m+1/n, for every positive integer n, is best described by:

a) 1 < r < 5
b) 2 < r <= 4
c) 1 < r <= 5
d) 2 <= r <= 4
e) none of these

Knowledge of harmonic progressions is not required on the GMAT.
If you want to post out-of-scope questions, at least explain what a harmonic progression is.
From what I can see, many of the questions posted by shashank.ism are from a site called totalgadha.com
I believe that the site is for students writing the CAT (Common Admission Test) in India.
A lot of these questions are out ot scope for students writing the GMAT.

If you have a general interest in challenging math questions, then these questions are great.

If your sole purpose for visiting Beat the GMAT is to prepare for the GMAT, a good deal of these questions go beyond what the GMAT tests.

Brent Hanneson - Creator of GMATPrepNow.com

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sumanr84: Legendary Member; Posts: 758; Joined: Sat Aug 29, 2009 9:32 pmFollowed by: 2 members; Location: Bangalore,India; Thanked: 67 times

by sumanr84 » Mon Feb 08, 2010 10:04 am

Brent Hanneson wrote:
shashank.ism wrote:Let m be the largest positive term of an harmonic progression whose first two terms are 2/5 and 4/9.
A real number r satisfying m/2-1/n < r <= m+1/n, for every positive integer n, is best described by:

a) 1 < r < 5
b) 2 < r <= 4
c) 1 < r <= 5
d) 2 <= r <= 4
e) none of these
Knowledge of harmonic progressions is not required on the GMAT.
If you want to post out-of-scope questions, at least explain what a harmonic progression is.
From what I can see, many of the questions posted by shashank.ism are from a site called totalgadha.com
I believe that the site is for students writing the CAT (Common Admission Test) in India.
A lot of these questions are out ot scope for students writing the GMAT.

If you have a general interest in challenging math questions, then these questions are great.

If your sole purpose for visiting Beat the GMAT is to prepare for the GMAT, a good deal of these questions go beyond what the GMAT tests.

I totally agree.

I am getting frustrated seeing latest Q posted by him.

A request to shashank.ism to put only GMAT related Qs here.

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shashank.ism: Legendary Member; Posts: 1022; Joined: Mon Jul 20, 2009 11:49 pmFollowed by: 2 members; Location: Gandhinagar; Thanked: 41 times

by shashank.ism » Mon Feb 08, 2010 10:09 am

Brent Hanneson wrote:
Knowledge of harmonic progressions is not required on the GMAT.
If you want to post out-of-scope questions, at least explain what a harmonic progression is.
From what I can see, many of the questions posted by shashank.ism are from a site called totalgadha.com
I believe that the site is for students writing the CAT (Common Admission Test) in India.
A lot of these questions are out ot scope for students writing the GMAT.

If you have a general interest in challenging math questions, then these questions are great.

If your sole purpose for visiting Beat the GMAT is to prepare for the GMAT, a good deal of these questions go beyond what the GMAT tests.

Dear Brent I am newbie for GMAT and from mathematical background, basically an engineer, will you please explain me how GMAT questions are different from CAT questions(in concepts etc.), does GMAT questions require 0 knowledge of Maths. Or HP is not included in syllabi of GMAT.

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shashank.ism: Legendary Member; Posts: 1022; Joined: Mon Jul 20, 2009 11:49 pmFollowed by: 2 members; Location: Gandhinagar; Thanked: 41 times

by shashank.ism » Mon Feb 08, 2010 10:22 am

sumanr84 wrote:
I totally agree.

I am getting frustrated seeing latest Q posted by him.

A request to shashank.ism to put only GMAT related Qs here.

Sumanr84 I would keep it in mind to have only GMAT questions posted here. Actually i saw some of questions posted earlier too of this type.. And don't be annoyed, just leave the last few questions specially graph and HP. I will be not post any question of HP and graph and other such questions here.

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GMAT/MBA Expert

Ian Stewart: GMAT Instructor; Posts: 2623; Joined: Mon Jun 02, 2008 3:17 amFollowed by: 355 members; Location: Montreal; Thanked: 1090 times; GMAT Score:780

by Ian Stewart » Mon Feb 08, 2010 1:15 pm

shashank.ism wrote: Dear Brent I am newbie for GMAT and from mathematical background, basically an engineer, will you please explain me how GMAT questions are different from CAT questions(in concepts etc.), does GMAT questions require 0 knowledge of Maths. Or HP is not included in syllabi of GMAT.

If you are new to the GMAT, you should get a copy of the Official Guide (12th edition) if you do not have it already. From the math review section, you should get a clear idea of what topics are within the scope of the test - no particularly advanced mathematical knowledge is required. The explanations in the book are not ideal, but the questions are all retired real GMAT questions, so are excellent for practice.

For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com

ianstewartgmat.com

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