The Quantitative Aptitude (QA) section is one which haunts the dreams of many of the non-engineering aspirants. With CAT generally being regarded as one a ‘tough’ exam, the prospect of solving high level Quantitative Aptitude leaves several aspirants shaking.
But is it really high level Quat?
Worry not! This article will carry details on how to prepare for the CAT Quantitative Aptitude (QA) section by establishing a process about how to prepare for QA questions.
The topics covered in the Quantitative Aptitude syllabus is not clearly defined in the syllabus due to which the students are always slightly confused about how to prepare for the CAT Quantitative Aptitude(QA) section. However some analysis on the previous year's papers yielded the information that every year, Numbers and Geometry & Mensuration generally account for the highest number of questions in the form of almost 10-12 questions. This represents almost a third of the questions from the total 34 in the section.
Geometry and Mensuration formulae are quite intensive in number which is one of the reasons that many students find this section tough. Without the formulae and the tricks, solving these questions could take a very long time. In order to help the students on how to prepare for the Quantitative Aptitude (QA) section, the major mensuration formulae are mentioned below:
Right Circular Cylinder
Right Circular Cone
Some shortcuts apart from these mensuration formulae that can be used to solve these questions as soon as possible are:
These mensuration formulae usually come in handy for students who are looking at how to prepare for Quantitative Aptitude (QA). Similarly formulae for geometry is also available on this website.
For geometry, the various theorems are difficult to remember and this makes solving some of these questions very difficult. There are questions where knowing the right theorem could solve the question within 15 seconds while the conventional methods may exceed a couple of minutes.
After the mensuration and geometry section, the next topics which can be taken up by students is Numbers. Numbers in CAT is one of the fundamental topics of the section and one which students tend to devote a lot of time too.
One of the reasons for this is that the types of questions that can be made on Number systems are huge due to which the study materials have a huge amount of content for this section compared to other topics such as commercial maths.
Some of the most important types of questions that have been repeated in CAT are:
These sections cover almost half of the QA section in the exam. However when students ask teachers how to prepare for the QA section, a few other topics are always mentioned such as Commercial Maths, Probability, Alligations and Mixtures, Sequence and Series and Trigonometry.
Commercial Maths consists of primarily two topics, Profit and Loss & Simple and Compound Interest. While there are only a few formulae in these topics, they are quite calculation intensive. The use of percentages in this types of questions generally allows for faster calculations and solutions. Some of the formulae in this topics are:
These two formulae are basically sufficient for solving questions from Simple and Compound Interest although some more formulae can be derived to help the student solve faster.
Alligations and Mixtures are a topic which can be tested in conjunction with other topics, such as profit and loss, or through stand alone questions. The basic concept of this topic is that it consists of two or more materials/items being mixed and the questions are usually framed to ask how much of each should be added to a mixture in order to reach a particular ratio. Profit and Loss can be added to this question by mentioning the cost of each material and the cost of the alloy.
Sequence and Series is a topic which covers three basic topics: the Arithmetic Progression, the Geometric Progression and the Harmonic Progression. These topics, like Alligation and Mixture, can be stand alone questions or may be mixed with other topics although that is quite rare.
Trigonometry is an auxiliary topic which is used in Geometry, time, speed, distance and as a standalone topic. The basic formulae for trigonometry should be on every CAT students fingertips as it can be used quite a lot.
These are some of the topics that carry a significant weight in the Quantitative Aptitude section. Some general tips on how to prepare for the CAT QA section are:
How to prepare for the CAT Quantitative Aptitude (QA) section was once one of the biggest questions that aspirants needed to answer before they could think about giving the exam. However today, we have several resources available online to start our preparation without anybody else's help. Still the competitiveness of the classroom coaching in QA classes is difficult to compete with as it is the most level field between the aspirants while VA and DILR favor those who might have a natural knack at it.