## Search found 1060 matches

#### Ron Purewal videos index

###### GMAT Strategy

Great job mate! Thanks!

by neelgandham

Sat Sep 22, 2012 1:38 am
Forum: GMAT Strategy
Topic: Ron Purewal videos index
Replies: 7
Views: 25816

#### Practise Test Problem

###### Problem Solving

Please find Anurag's response here: http://www.beatthegmat.com/a-median-of- ... 79428.html

by neelgandham

Sat Sep 22, 2012 1:20 am
Forum: Problem Solving
Topic: Practise Test Problem
Replies: 4
Views: 1184

#### 610 (diagnostic) to 760 (47Q/73%, 49V/99%, 99% overall)

###### I just Beat The GMAT!

Oh my god! You piece of kohinoor!

by neelgandham

Thu Sep 20, 2012 1:22 am
Forum: I just Beat The GMAT!
Topic: 610 (diagnostic) to 760 (47Q/73%, 49V/99%, 99% overall)
Replies: 7
Views: 6580

#### DS - 1

###### Data Sufficiency

Find the number of cubes required to erect a pillar of volume 20 m3? I. The edge of the cube is 0.5 m. Case 1: Let the base of the pillar be made with one such cube. Volume of the pillar = Area of base * Height = 0.5*0.5*0.5*hn = 20 n = 20*8 = 160. Case 2: Let the base of the pillar be made with two...

by neelgandham

Wed Sep 19, 2012 3:29 am
Forum: Data Sufficiency
Topic: DS - 1
Replies: 3
Views: 1015

#### Mixture problems: I'm really struggling, any good frameworks

###### Problem Solving

See if these help: http://www.beatthegmat.com/mba/2010/12/09/mixture-problems-on-the-gmat http://www.beatthegmat.com/mixture-problem-pita-works-not-pluggin-in-t117281.html http://www.beatthegmat.com/concept-of-mixture-problem-t111809.html http://www.beatthegmat.com/hard-solutions-mixture-problem-t69...

by neelgandham

Tue Sep 18, 2012 1:00 pm
Forum: Problem Solving
Topic: Mixture problems: I'm really struggling, any good frameworks
Replies: 1
Views: 1230

#### Proportions- averages

###### Problem Solving

In a game, three groups of students (A, B and C) in a class have averaged scores of -4, 0.5 and 20 respectively. The class average is 2. Group A and B account for what proportion of the entire student population? Let the number of people in groups A,B,C be A,B,C. So, -4*A + 0.5*B + 20*C = 2*A + 2*B ...

by neelgandham

Tue Sep 18, 2012 9:02 am
Forum: Problem Solving
Topic: Proportions- averages
Replies: 3
Views: 948

#### Please Vote for Beat The GMAT!

###### Announcements

Eric,

What is the latest on this ? Did we win or Did we manage to be in the top 5 ?

by neelgandham

Tue Sep 18, 2012 6:27 am
Forum: Announcements
Topic: Please Vote for Beat The GMAT!
Replies: 4
Views: 2751

#### X&Y

###### Data Sufficiency

Great explanation! Ta

by neelgandham

Tue Sep 18, 2012 1:28 am
Forum: Data Sufficiency
Topic: X&Y
Replies: 4
Views: 1013

#### Manhattan Challenge Problem

###### Problem Solving

Prashant - Did you realise that you bumped on to a very old thread ?

by neelgandham

Mon Sep 17, 2012 7:05 am
Forum: Problem Solving
Topic: Manhattan Challenge Problem
Replies: 23
Views: 7860

#### X&Y

###### Data Sufficiency

Is x^4 + y^4 > z^4? A x^2 + y^2.> z^2 Case 1: If x = 100, y = 100 and z = 0. Then x^2 + y^2.> z^2 (2*100^2 > 0) and x^4 + y^4 > z^4 (2*100^4 > 0). Case 2: If x = 4, y = 4 and z = 5 x^2 + y^2.> z^2 (32 > 25) and x^4 + y^4 < z^4 (512 < 625). Since we don't have a definite answer, Statement I is insuff...

by neelgandham

Mon Sep 17, 2012 6:39 am
Forum: Data Sufficiency
Topic: X&Y
Replies: 4
Views: 1013

#### For any positive integer n, the sum of

###### Problem Solving

Jonathan - The answer is incorrect because the question is

What is the sum of all the even integers between 99 and 301 ?

and NOT

What is the sum of all the integers between 99 and 301 ?

by neelgandham

Mon Sep 17, 2012 6:26 am
Forum: Problem Solving
Topic: For any positive integer n, the sum of
Replies: 7
Views: 3730

#### OG 13 ,median problem

###### Data Sufficiency

Please check Stuart's response here - http://www.beatthegmat.com/median-question-t8140.html

by neelgandham

Mon Sep 17, 2012 6:19 am
Forum: Data Sufficiency
Topic: OG 13 ,median problem
Replies: 1
Views: 721

#### OG 13 ,terminating decimal problem

###### Data Sufficiency

Q)If r and s are +ve integers and the ratio r/s is expressed as a decimal,is r/s a terminating decimal? 1) 90<r<100 91/99 is a recurring decimal. 91/91 is a terminating decimal. Since we don't have a definite answer, statement I is insufficient to answer the question. 2) s=4 r/s = 0.25 * r = Always ...

by neelgandham

Mon Sep 17, 2012 6:17 am
Forum: Data Sufficiency
Topic: OG 13 ,terminating decimal problem
Replies: 2
Views: 1175

#### OG 13, operator problem

###### Data Sufficiency

Q) If @ represents one of the operators +,- and * , is [email protected](l+m)=([email protected])+([email protected]) for all numbers k,l and m ? 1)[email protected] is not equal to [email protected] for some number k. Let @ be *, then k*1 = 1*k. So, @ can't be *. Let @ be +, then k+1 = 1+k. So, @ can't be +. Let @ be -, then k-1 != 1-k(not always). So, @ is '-'. and t...

by neelgandham

Mon Sep 17, 2012 6:09 am
Forum: Data Sufficiency
Topic: OG 13, operator problem
Replies: 4
Views: 1196

#### Time and Distance problem

###### Problem Solving

The answer is 10hours and 9hours. I will post a detailed explanation in a bit. Before that, Can you please cite the source of the question please? It doesn't look like a GMAT type question.

by neelgandham

Sun Sep 16, 2012 7:46 am
Forum: Problem Solving
Topic: Time and Distance problem
Replies: 3
Views: 2375