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Group Information

  • Members: 5010
  • Category: GMAT
  • Founded: Dec 28, 2004
  • Language: English
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Activity within 7 days:

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Description

This group is an initiative by 4GMAT for online GMAT Preparation for GMAT Problem Solving. 4GMAT posts two GMAT sample Maths practice questions (problem solving or data sufficiency) each week with correct answers and explanations to each of these quant questions.

You can access the archives of the GMAT math problem solving questions sent in the past by visiting the Math Question bank. In addition, 4GMAT also runs a Math quiz that is updated every fortnight. Click here for the Free Math Test.

You will find a lot of interesting questions and replies posted on specific questions, preparation methodologies, books guides that have to be followed on this Yahoo group.

You can also post your doubts in GMAT Problem Solving, DS at the online forum at http://mba-forum.4gmat.com

Archives of the following maths questions in problem solving and data sufficiency in the following topics are available:
Algebra, Sequences series - Arithmetic and Geometric Progressions, Arithmetic Mean, Median, Mode, Deviation, Inequalities, Data Sufficiency, Geometry, Mensuration, Number Systems, Percentages Permutation and Combination, Probability, Profit Loss, Quadratic Equations, Ratio, Proportion, Variance, Set Theory, Simple Compound Interest, Speed - Time - Distance, Work Time, Pipes Cisterns.

Best wishes for cracking the GMAT.

Most Recent Messages

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Re: QOTW : Quadratic Equations
Hi, Since the line does not cut the X axis, it is an INEQUALITY, So, you should look for the answer choices by which the equation do not answer. Solve the
Posted - Mon Jul 13, 2009 1:46 am
 abdi borhan
m_borhan2002
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Re: Number Theory
Hi,   From the controversy steted, we can easly determine that there is no possible answer for the test and it might be one of the thousands traps frequently
Posted - Mon Jul 13, 2009 1:45 am
 abdi borhan
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Re: QOTW : Quadratic Equations
Hi, answer is (D). Just some quick steps--> If y = x^2 + dx + 9 cuts the x-axis, then y=0. So, this gives you four possible values for d. d=10,-10, 6, 0. But
Posted - Mon Jul 13, 2009 1:45 am
 Gabriel Chen
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Re: QOTW : Quadratic Equations
... The answer to this question is option (C). If y = x^2 + dx + 9 does not cut the x-axis, then which of the following could be a possible value of d?
Posted - Mon Jul 13, 2009 1:44 am
 kanishk_0016
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Re: QOTW : Quadratic Equations
  not cut the x-axis means y can not be equal 0. so if we have y=a*x^2+b*y+c then b^2-4ac must be less than zero   then: d^2-4*9<0 , d^2< 36,    -6<d<6
Posted - Mon Jul 13, 2009 1:44 am
 Hamed Aghakhani
hamed_aghakhani
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2008 17 23 25 22 37 3 19 32 26 32 15 20
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