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Transcript of By Satyadhar Joshi Online Class Feb 2011
Quantitative Comparisons for GRE/ CAT (Toughest Possible Questions)
By Satyadhar JoshiOnline Class Feb 2011
http://www.freegregmatclass.com/
Content IntroductionQuestions of Quantitative ComparisonsConclusion References
About this ClassTough questions of Quantitative
Comparisons for CAT/GRE with some strategies to solve them will be discussed. Modified question of some books will be solved so that you can benefit and hone(sharpen) your skills.
This session will help you to understand how to pick up and visualize, fine tune and strategically work for QS. The class is expected to be highly interactive so that I can solve your difficulties and remove your fears about the subject.http://www.ets.org/gre/revised_general/prepare/quantitative_reasoning/
comparison
IntroductionSession about Quantitative ComparisonsStrategy more important than knowledge
about the subjectYou don’t have to solve the questionsWe have to just conclude if it can be / or
cannot be solved with the given dataThe questions are mathematical or logicalTricks and shortcuts exploredPractice SessionConfidence building measure taken up
Comparing Quantities The Quantitative Section contains about 14 Quantitative Comparison
questions. These questions have a very specific format, and they test your ability to evaluate information given and compare two figures mathematically.
The comparison questions will always have a ‘column A’ and ‘column B’, each column containing numbers of variables. Often, you’ll get additional information about the variables. You will then have to choose one of the following 4 answers:
1. The quantity in column A is greater2. The quantity in column B is greater3. The two quantities are equal4. The relationship cannot be determined from the information given This might sound a bit confusing, but it’s pretty straightforward- all you
have to do is figure out whether column A or B contains a larger quantity. Sometimes you won’t be able to figure it out using the given info, in which case D is appropriate, and sometimes they’re equal, so you’ll answer C. Here are a couple of exams to help you understand.
http://gre.jumbotests.com/info/gre-quantitative-comparison
StrategiesMemorize the form and order of the answer choicesSimplify the comparison by doing the same (allowable)
operations to both columns. You might be able to simplify one or both expressions by multiplying or dividing both by the same term
Read the information centered between the two columns if there is any
Restriction on the values that a variable can take, consider what happens if you choose positive versus negative values, odd versus even values, and integer versus fractional values
GRE tests your knowledge of algebra, geometry, data interpretation, arithmetic, and properties of numbers in these questions
http://www.ehow.com/how_4599392_ace-gre-quantitative-comparisons.html
Be carefulIf you plug in numbers into expressions with
variables and you get different results, than DGeometric figures on the GRE are not always
drawn to scaleAvoid doing needless calculations. Do only as
much work as you need to do to make the comparison
Consider all the possibilities when it comes to unknowns
http://www.ehow.com/how_4599392_ace-gre-quantitative-comparisons.html
Strategies Read headingDon’t confuse percent and numbersEstimate Use of scratch paper in the best wayUse hintsReasonable answersTry to visualize the answer
Unwarranted AssumptionsHow our wrong assumption can cause
disaster in the exam
Checking Extreme Values Boundary condition helps us a lot
Questions Set AQuestions similar
with change data and words from GRE Nova Math Bible
Questions Set BQuestions similar
with change data and words from GRE Nova
Conclusion Tuff questions dealt in Data SufficiencyTricks and shortcuts exploredPractice SessionConfidence building measure taken up
References & Recommended ReadingsGRE Nova Math bible GRE Novahttp://majortests.com/gre/
quantitative_comparisons.phphttp://www.syvum.com/cgi/online/serve.cgi/
gre/quant/quantcomp5.tdf?0