# Quantitative tutorials

Last updated: 13 Oct 2008

The *quantitative* section of the GMAT consists of 37 questions in 75 minutes on all your favorite maths topics from high-school i.e. arithmetic, algebra, geometry, probability and sets.

We will be providing for all the tutorials you need, to enable you to tackle any math question on the GMAT.

Much of this will be revision of your high school math which you may be a little rusty on.

We will also cover common question types, word problems, data sufficiency, work rates etc. and the techniques and tricks you can use to answer these questions accurately and efficiently.

This course is currently under development and we will be adding new tutorials to cover each of these areas in the coming months.

- Fractions tutorial
You are not allowed to use a calculator in the GMAT so a mastery of fractions is absolutely essential if you are to succeed in the quantitative section of the GMAT. This tutorial will remind you of all the basics.

- Exponents, ratios and percentages tutorial
This tutorial will show you how to use exponentials, ratios and percentages in the GMAT.

- Geometry tutorial
Do you remember what a chord, tangent, perimeter or circumference are? Can you work out the surface area of a cylinder or the area of an arc? What is an isosceles triangle?

You need to know all this and more to succeed in the quantitative section of the GMAT.

If any of these questions leave you stumped then this tutorial will be perfect for you.

- Properties of numbers tutorial
This tutorial covers sets of numbers, e.g. real numbers and integers, odds and evens, primes etc. and their properties.

- Word problems tutorial
Understanding what you are being asked and making sense of the information you are given is half the battle in many of the questions in the quantitative section.

This tutorial will give you some basic techniques for understanding and solving word problems.

- Rate problems tutorial
How to approach different sorts of rate problems including average speeds and combined work rate problems.

- Data sufficiency
In this tutorial we will look at the key strategies for tackling data sufficiency questions and work through some examples of standard 'tricks' that are used to catch you out in this type of question.

- Permutations, combinations and probability
Everything you need to know about counting for the GMAT.

What about Permutations, Combinations and Counting methods in general? The term "Word Problems" means nothing and I don't know why people segregate this into a separate area..

Anonymouson 15 Mar 2007 (permalink)We have a separate word problems tutorial because there are techniques for making sense of the questions which many people need help learning. Others, and perhaps you are one of them, find that these techniques are second nature and so can tackle these problems without help.

The next tutorial/practice question set that I am putting together is on the difficult subject of permutations, combinations and counting methods, so watch this space.

Good Morning Joel,

Waiting for your valuable material regarding Permutation, combinations and counting methods.

I am afraid that I been distracted by work on other parts of the site, and so now there are print versions of all the tutorials, lots of new practice questions including a whole new set for Critical Reasoning and also a new daily GMAT questio but no new material on permutations and combinations.

It is unlikely that a tutorial will be ready on this counting methods until at least the end of July.

Hi Joel,

Thanks for your reply and additional set of practice questions.

One thing I like in this site is quality of information in a systematic way. (like giving proper explanation of answers to all questions, basic concepts, immediate feedback etc)

Is there data interpretation and mensuration questions in quant section of the GMAT?

Please post practice questions from mixtures, profit and loss discounts, sets, simple and compound interest, progressions & inequalities.

Waiting for your valuable reply.

There are data interpretation questions in the GMAT. For example you might be presented with a graph and asked a question about what it tells you. However these are fairly rare.

I am not quite sure what sort of questions you are referring to when you say mensuration questions. There are geometry questions in the GMAT that involve angles, lengths and measurement and there are also some word problems which include lengths, volumes and speeds.

Dear JOEL,

I am looking for some material on CO-ORDINATE GEOMETRY. Please help.

regards,

ashutosh

Anonymouson 24 Jun 2007 (permalink)This is covered briefly in the coordinate geometry section of our geometry tutorial.

There are also a few coordinate questions in our set of geometry practice questions.

I hope these are helpful to you.

Hi Joel,

I clocked 650 in the GPrep...

I got 16 Qs wrong in verbal and 13 in Quants.

Scaled scores are 47 and 33 resp...

I got to get it to 750+

My date is on 31st July...Sentence Correction and DS are pain areas for me.

Sugest me some tips keeping the time frame in mind...

Also how are the PR tests and the ones of NOVA's??

Thanks,

Nirmal.

You are in luck, sentence correction and data sufficiency are the two areas of the GMAT which are easiest to improve upon.

With sentence correction you need to practice and every time you get a question wrong you must make sure you review the question and are clear about how to solve it afterwards.

At your level data sufficiency will be all about making silly mistakes, so make sure that in your practice you are not rushing through to try and do as many questions as you can. Take your time and aim to make no silly mistakes during your practice.

PR tests tend to be a little easier than the real thing particularly on the math. I am afraid I haven't tried NOVA's

Best of luck for the 31st.

all the best nirmal

Anonymouson 16 Jul 2007 (permalink)hi joel,

took the gmat last year wo any prep .. lost conc in between and scored 620 .. aiming for it again this oct i need a 750+ ... suggestions please

Anonymouson 10 Aug 2007 (permalink)Hello Joel...........i'm taking my exam on AUG 16th ...the Practice questions that you have kept in your site will really help me.

And if u can able to put some more questions in future it would be very much appreciable.

with Regards,

Harsha

I have since completed a permutations, combinations and probability tutorial and set of practice questions.

All the best.

Hi!

Today only I become the member of this site and went through the 6 practice question. Scored only 500. My weakest part in maths is (1) Silly mistakes (like to find the area of a shaded portion when two dias are dividing each other at 20 degree, I didn't noticed that that the dia is mentioned and not radius and hence made the mistake) (2) Data Suffeciency I made that wrong too for whether n is divisble by 21 or not and again silly mistake...huh).

However, I am most afraid of Verbal section & AWA as my grammer is not very good. I need to work on verbal & AWA first. Can you please suggest me how to target these sections. Shall I go through the basic grammer or concentrate only on the specifics of GMAT. Shall I take some English grammer course or what? I am stuck here trying to find an answwer for this. How about vocublary? I am not very good at this too.

As far as Maths is concerned, in different diagnostic tests, I am able to answer 31-33 questions correctly. However, shall I target more (to compensate my poor English) or this is okay?

Also, I noted that no one has posted any comment since 2007 and not sure if I will hear something from someone. Waiting for an expert judgement.

Thanks in advance.

Is this tutorial still working? the latest comments are dated 2009