# Category: QA

## How to Solve Simultaneous Equation with 3 Variables

Let’s take simultaneous equation with 3 variables. ……………(1) …………..(2) …………….(3) To solve simultaneous equation with 3 variables Step 1: Take 2 equations, say (1) & (2) to remove any one variable, say z. Mark...

## Algebraic & Graphical interpretation of Simultaneous Equation

Let’s take a pair of linear equation: ……………..(1) ……………..(2) With the help of coefficient of equations (1) & (2) we can easily determine if the solution of the simultaneous equations will be Unique Solution,...

## Approach to solve Simultaneous Equations : Substitution & Graphical Method

Approach 2 : Substitution MethodIn this method, we express one of the variables in terms of the other in 1 of the equation and then substitute the value of the variable in the other...

## Approach to solve Simultaneous Equations : Elimination Method

Approach 1 : Elimination Method In this method we try to eliminate one of the two variables in the linear equations. After elimination, an equation with only one variable is left. Simplifying the equation,...

## Simultaneous Equations & Linear Equation in 2 Variables

A set of 2 (or more) linear equations in 2 (or more) variables which are satisfied simultaneously by a same unique solution are called as Simultaneous Equations.e.g. 2x + 3y = 14and 2x –...

## How to transform a verbal statement into a simple Equation

In CAT/GMAT/MBA/Other aptitude tests, there are verbal statements in which a problem is given. To solve the problem, we need to express it as algebraic equation. The unknown quantity is first considered as a...

## Simple Equation : Framing

Lets start with “What is an equation ?” It is a statement in which two algebraic expressions are equal. e.g. So, What is a “Linear equation” or Simple Equation”?An equation of the first order...

## Basic Concepts of Algebra

The Variables and constant coefficients combine to form algebraic terms and these algebraic terms combine to form Algebraic expressions. To combine the algebraic expressions mathematical operators are used. Example of variable : x,y,z Example...

## CAT 2016 -Find out your Percentile

ongratulations to each one of you for writing CAT 2016 and doing your best, I know most of you are worried that you could have done 4-5 questions more,  have not committed the silly...

## IIMs cutoff for CAT 2016

Congratulations, the very fact you visited this page shows that you are hopeful of going to IIMs. Your hard work paid off. In case you wish to re check percentil you are getting, Have...

## Important formulas from Number System for CAT/XAT/IIFT/NMAT/SNAP/MICAT/CMAT

1.Natural number : Counting numbers 1,2,3,4 etc are called natural numbers. 2.Whole Numbers : Natural Numbers and 0 3.Integers : All natural numbers, 0, and negative numbers together form the set of integers. {…….-3, -2,...

## How to establish condition to form a triangle when a pencil is cut into 3 parts ?

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/MOCKCAT. \/ You might have encountered with the various kind of problems based on properties of triangle. Very basic properties of...

## How to find number of positive integers ‘x’ such that x/4 has 3 digit & x/3 has 4 digits ?

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/..CAT. A very unique question, isn’t it ? So what thought process comes in your mind right now ? Probably the...

## How to find whether a point lies inside a triangle or not

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/..CAT. \/ A type of question which is asked is “whether a point lies inside a triangle or not?” \/ If...

## How to find last two digit of a large number in the form of power

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/..CAT. \/ A very unique question that troubles you is the last 2 digit of a number in form of a...

## How to find last two digit of a large number in the form of a product

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/..CAT. \/ A very unique question that troubles you is the last 2 digit of a number in form of a...

## How to find if a factorial of a number is divisible by a certain number

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/..CAT. \/ A peculiar type of question that troubles you is whether the factorial of a number is divisible by certain...

## MBA : Quantitative Aptitude

There is a group of 11 people namely: A1, A2, A3, …, A11. The number of balls with A1 through A11 in that order is in arithmetic progression. If the number of balls with...

## Quantitative Ability : CAT Practice Question

1.A and B are two alloys of gold and copper prepared by missing metals in the ratio 7: 2 and 7: 11 respectively. If equal quantities of the alloys are melted to form a...

## How to find number of digits in a Natural Number

You might have solved last year CAT papers(when it was available) or any AIMCAT/SIMCAT/..CAT. \/ 1 question that troubles you is to find the number of digits in a number. \/ Well there are...