Tuesday, March 10th, 2015
There is common perception that Number System questions form the most important part of the CAT syllabus and something that cannot be neglected when it comes to CAT Preparation. While I agree with the latter half, I strongly object to the first part. The perception about Number System is such because when you consider all chapters of CAT Syllabus, it IS probably the most important but when you compare it with other categories – it loses its relevance. You have to understand what you are comparing it with. If you are comparing with another chapters like Time, Speed, and Distance or Permutation and Combination – yes, it has more weightage. But if you are comparing it with Arithmetic, Algebra, Geometry, etc. – it is probably the least important part. And because of this incorrect understanding, a lot of students spend a lot of time on Number System which can be better utilized elsewhere.
Another issue with Number System questions is that students are not able to decide what is relevant when it comes to preparing for CAT. They spend time sharpening their skills to find out the last two digits, or to understand Fermat Theorem to find out the remainders in Number System questions. If you are preparing for the CAT exam, it is not required at all. Such advanced concepts are not required for CAT Preparation. The best CAT Coaching institutes and even the CAT coaching faculty, including me, are to blame for this to a certain extent. Given below is the complete list of topics from Number System that you should be familiar with.
Basics of Numbers
Divisibility and Factors
HCF / LCM
Finding Out Last Digit
Finding Out Last Two Digits
Number of Trailing Zeroes
Highest Power of a Number in a Factorial
Finding out Remainders
To find out about their relative importance and also which areas you should focus on while preparing for CAT 2015, do watch the video given below.
You can download the complete and detailed syllabus for CAT in the PDF format for free from the green button below. You will be asked to share about it on Facebook / Twitter. I request you to do the same as it would help your friends and other people in your network. Also, it would encourage us to keep doing more in the domain of building free guides for CAT Preparation. Hope you enjoy it.
In the next video / post in the series on CAT Syllabus, we will be covering the Algebra portion of CAT preparation in more detail. You can view the video on complete CAT syllabus here.