# Geometry Fundas for CAT Quantitative Aptitude Preparation – Part 2

July 27th, 2020 by

In the previous post we discussed lines, triangles, parallelograms, trapeziums, polygons etc. Now, we will discuss other expanses of geometry which are vital as, the questions on these topics are asked repeatedly in CAT. Let us look at few of the fundas / formulae on these topics that are often neglected by students and can fetch some crucial marks in the exam. Funda 1: Angle made by Secants       2 .   In both these cases, PA * PB = PC * PD   Funda 2: Common Tangents     eg: Note: The two centers

# Geometry Fundas for CAT Quantitative Aptitude Preparation – Part 1

July 26th, 2020 by

I got a lot of feedback via emails and texts that people are looking for a post on geometry. I have been avoiding it for sometime because of two main reasons: a)      It is not one of my strong areas. b)      It takes a lot of time to draw the diagrams that are sometimes required to explain the fundas. The questions on geometry are the trickiest and consumes the maximum amount of time as compared to the questions on other topics in Quantitative aptitude that is why, I have compiled a list of fundas that you might find helpful in solving CAT level questions. I am splittin

# How to solve Time and Work problems in CAT Exam

July 25th, 2020 by

Months have passed, Days are passing by swiftly and with each day you are progressing closer towards CAT exam. As hours, minutes and seconds pass we cannot afford to lose a single second recklessly. In short, Time is running out and we still need to do a lot of work! Time and work is something that always runs in parallel with each other. We are always in short of time as compared to the work to be done. Today I will tell you how to manage your little time and paramount of work problem and this also will serve the relevant purpose of writing this blog i.e. Time and Work problems in quantit

# Permutation and Combination – Distribution of identical object

July 24th, 2020 by

Distribution of identical object is quite wide and important topic in permutation and combination. While distributing identical object it does not matter which object is given to which person, what matter that how many objects are given to any person. Let us take a basic example to understand the concept of this topic let us assume we have to distribute five identical apples between two students such that a student can get any number of apples. If we give zero apple to first student second student will get all the five apples and if we give one apple to first student then other student

# Permutation and Combination – Division and Distribution of distinct objects

July 23rd, 2020 by

Division and distribution is an important topic in permutation and combination. In this topic we learn how to divide the objects in groups or how to distribute these objects between different persons. This topic contains lots of categories. First category is we have to look which type of object we have to distribute either identical or distinct. Here we will discuss the concept of distribution of distinct objects later in second article we will discuss distribution of identical object. Let’s start to understand this concept with various examples. Division of distinct object in various g

# How to solve logical reasoning problems based on team selection and group formation?

July 22nd, 2020 by

In this post, we will learn about logical reasoning concepts on selection and group formation that is frequently asked in CAT exam. This topic generally deals with the selection of a team of say ‘r’ members from ‘n’ (n>r) available for selection or it can be the selection of committee of certain number of members. Certain number of constraints drives this selection. In order to understand these constrains and the implicit details related to them, let us start the discussion with an example. Question: Among five students of group I – A, B, C, D, E and six students of group I

# Circles Part -2 : Sample Questions for CAT Exam

July 21st, 2020 by

In the earlier post on circles, we had discussed the properties and some sample CAT questions related to circles. In this post, we will see some additional CAT questions which have been asked in the previous years. Let us look at below examples. Example 1: A one rupee coin is placed on a piece of paper. How many more coins of the same size may be placed such that each touches the central coin and the two adjacent coins? a.) 7 b.) 4 c.) 5 d.) 6 Solution:  It can be seen in the below figure that if we place 3 coins touching each other, their centers form an equilateral tri

# Circles (Concepts, properties and CAT questions)

July 20th, 2020 by

Concepts of a circle are very important for CAT examinations. There are lots of properties to understand and some formulas to remember. Several direct and sometimes indirect questions are asked from concepts of a circle in CAT exams. Also, some of the geometry questions cannot be solved without having a proper understanding of CAT concepts. Let’s take a look at some of the concepts and CAT questions related to circles. 1. Arc: An arc is just a part of a circle. An arc can be measured in degrees. In the above diagram, the part of the circle from B to C forms an arc. Also, arc BC

# Binomial Theorem – Concept and Applications

July 16th, 2020 by

Binomial Theorem is a very intriguing topic in mathematics due to its wide-ranging application. Before moving forth with its use, let me ask you a question? Do you remember what’s is (a + b)2 or (a-b)2? I guess most of you would have easily say (a+b)2 is a2 + b2 + 2ab and (a2 – b2) is a2 + b2 -2ab. But, what about (a + b)4? Okay, this is something you can still deduce. Let’s make it a little bit more complex, can you tell what the expansion for would be (a + b)7 or (7a – 5b)10. Now, I think it would not that simple to answer as you did earlier. Here’s something where the binomial