Math Formulas and Fundas
Ebook on Remainders – Includes usage of Fermat, Euler, Wilson Theorem
Previous Year CAT Papers – Quantitative Aptitude (2004, 2005, 2006, 2007, 2008)
Previous Year CAT Papers – Logical Reasoning and Data Interpretation (2004, 2005, 2006, 2007, 2008)
On more than one occasion, students have come to me asking for some sort of list of important formulas for CAT, XAT and other MBA Entrance Examinations. The best solution that I could suggest to them was to look at any good MBA-prep book or material from a coaching institute. More often than not, they have the formulas at the beginning or the end or scattered throughout the chapter. Till now, there exists no comprehensive list / book of formulas and fundas.Once the idea gathered some momentum various management training portals came on board to help us distribute it via their channels. We hope that our effort will not be in vain and it would prove beneficial for students.
Remainders, as a topic, confuses a lot of students. As a matter of fact, a large percentage of CAT quantitative Aptitude questions and doubts on any public forum (Pagalguy / Quora / Facebook) will be dealing with remainders. This is true for the Course Feed of my online CAT coaching course as well. So, I decided to combine all the various kinds of Remainder related questions and make a single post about it. I hope that if you go through the 50+ questions given in this PDF, you will never struggle with remainders again.
The central idea behind this eBook comes from what I believe is the best way to use old / previous years CAT papers. There are plenty of websites where you can get the papers from. As a matter of fact, most coaching institutes also include these questions in their preparation some way or the other. But most of them provide it as question papers / mock tests. However, I believe it would be most helpful to a student – in the final days of his / her preparation if he / she could get the questions sorted topic wise. Keeping that in mind, I started with sorting the questions and compiling them. The questions are divided in 5 categories, namely – Number System, Arithmetic, Algebra, Geometry, and Modern Math. I do understand that some of the questions cannot be classified as purely questions of one category – so I have taken some poetic license in cases like that.
Most students are perturbed by the fact that there is no great book / material available for Data Interpretation / Logical Reasoning to prepare from. The tests provided by coaching institutes, more often than not, are much tougher than the actual CAT questions. The few books which are available cover a large range of questions from too easy to too tough and the same ideas repeated over and over again. Once the problem was identified, we thought of what a student can do in the last few days of his preparation. How to come up with, 100 must do DI / LR questions before CAT? The answer was staring us right in the face – pick up the questions from previous year CAT papers. This ensures that the quality of the question set (difficulty level and spread of ideas) is maintained.