Quadratic Equations – Concepts and Questions with Solutions for CAT Exam

June 26th, 2020 by

Quadratic Equations are first taught to us in 6th or 7th class and most of us are able to score good marks in it because we are able to solve 90% of the questions by just using that formula. And that formula is: The above formula gives us the roots of the quadratic equation ax2 + bx + c = 0 For this post, I am assuming that you are aware of the basics of quadratic equations and know how to use the above mentioned formula. In case you are not, spending five minutes on the wiki page of Quadratic Equations won’t hurt. Wikipedia can be daunting at times, so come back here as soon a


Sequential Output Questions and Concepts for CAT and Other MBA Exam Preparation

June 23rd, 2020 by

Sequential output is basically output of a machine which is working on a fixed sequence. We start with an input and following a fixed pattern or sequence machine gives us the final output. In these type of questions, we observe that input output process in different steps and try to find out the pattern and sequence on which the machine is working. Importance from exam point of view – These questions looks dangerous but actually these are scoring questions in exams, it doesn’t take much time in solving. Pattern of questions- In all type of questions, there is a sequence given but somet


Remainder Concepts for CAT – How to Find Out Remainder of a Number with Power?

June 22nd, 2020 by

Figuring out the last digit is the same as figuring out the remainder of a number when divided by 10, but I guess you already know that. Figuring out the last two digits is the same as figuring out the remainder of a number when divided by 100. However, if you wish to figure the remainder when the divisor is not 10 or 100, I suggest you read on. Funda 1 of Remainders:  Basic idea of remainders can be used to solve complicated problems.     There is nothing special or unique about this idea. At first glance it seems like something really obvious. But it is it


Games and Tournaments for CAT Exam Logical Reasoning – Part 3

June 19th, 2020 by

In this post, we will discuss all the concepts we will require while solving questions related to games and tournaments. This topic can sometimes involve some basic understanding of the games mentioned in the puzzle. One should know some common terminologies used by the examiners in the questions. We need to analyze the data given before attempting any questions, which could make it a little time consuming if we are not familiar with the concepts. Broadly, we have two types of game structures that are used in making the puzzles. We can expect most of the puzzles based on these structures.


Games and Tournaments for CAT Exam Logical Reasoning – Part 2

June 18th, 2020 by

In our previous post on games and tournaments part-1, we discussed about two of the popular types of questions when it comes to games and tournament questions. So, if you are looking for questions on new types of data representation or questions based on seeding in a tennis tournament, probably you should read that. However, there is another popular type of questions with respect to Games and Tournaments and that is – Football / Hockey tournament questions in which we have to find out Goals scores, winners, ties, etc. In such tournaments, all competitors play a fixed number of matches


Games and Tournaments for CAT Exam Logical Reasoning – Part 1

June 16th, 2020 by

In Logical Reasoning very often we encounter problems based on games and tournaments. The first thing that as a CAT taker you need to realize is that such tournament based format offers the examiner a multitude of options. So, there cannot be a set formula for solving such kind of questions. However, if you look at the CAT papers of past few years – a pattern seems to emerge. Let us discuss couple of them. Type 1: The questions are typically in a set where the data will be either in the standard tabular format or a format which you would never find on Cricinfo or for that matter any o


How to Find Number of Trailing Zeros in a Factorial or Product

June 12th, 2020 by

In this Number of trailing Zeros blog post, We would like to cover these two ideas: Number of trailing zeroes in a Product or Expression Number of trailing zeroes in a factorial (n!) But before I begin, let us first try to understand what exactly are ‘trailing zeroes’. It is nothing else but the number of zeroes at the end. I do not want to sound pedantic but on many occasions when you see a question which asks about, “What is the number of zeroes in ___” it is incorrect, because it should actually say – “What is the number of trailing zeroes?” or “What is the


Tones of Passages for Reading Comprehension Questions in CAT Exam

June 4th, 2020 by

Tones of Writing By now, you must be aware of the various types of RC passages as well the different writing styles. Close to the writing style, comes the tone of passage. As you would know, tone-based questions frequently accompany CAT RC passages. So, what is really meant by ‘tone of the passage’? The tone of the passage represents the author’s sentiment or attitude towards the subject being discussed. In other words, it’s the predominant emotion the author displays towards the subject. You probably react differently to different people in same or different situations. You may


Learn the Basics of Time, Speed & Distance for CAT Exam

June 2nd, 2020 by

I guess my first fascination with problems of Time, Speed and Distance began when I first saw Henna. An important part of the story line  if you can call it that, saw Rishi Kapoor floating from India to Pakistan without drowning. I remember arguing with my friends that if could float for that long – he could swim back to India as well. My friends nullified the argument by saying: Speed River > Speed Rishi Kapoor I know that the reference is a little dated for most readers of this post, but Zeba Bhaktiyar made me look beyond reason. In this post we will discuss some of the ideas that


Cube Based Puzzles in Logical Reasoning for CAT Exam Preparation

June 1st, 2020 by

Cubes is one of the most frequently asked puzzle topics in CAT. These puzzles require us to think visually about the puzzle, which makes it somewhat tougher than other type of puzzles. We will discuss the basic concepts of the cube and few things that we would be using is majority of the puzzles related to cubes. Cube related puzzles are asked in a number of ways unlike selection or arrangement puzzles, where the primary pattern remains the same. We will illustrate some of the types of puzzles and the approach one should use to solve such problems. We will focus our discussion on what woul