ABOUT THIS COURSE

  1. Introduction
  2. Pair of Linear Equations in Two Variables
  3. Graphical Method of Solution of a Pair of Linear Equations
  4. Algebraic Methods of Solving a Pair of Linear Equations
    1. Substitution Method
    2. Elimination Method
    3. Cross-Multiplication Method
  5. Equations Reducible to a Pair of Linear Equations in Two Variables
  6. summary

Maths ( Pair of Linear Equations in Two Variables )

Duration: 120 Minutes | Course Code: 1129

Rs. 590

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Chapter 3- linear Equation

Learn about linear equations and related concepts!

What is linear Equation?

An equation of form ax + by + c = a, where a, b, and c are real numbers such that a and b are not zero is called linear equation in two variables.

It has infinite solutions.

The graph of the linear equation is always straight line x=a is a straight line parallel to the y-axis and y=b is the straight line parallel to the x – axis.

And every solution of the linear equation is a point on the graph of the linear equation.

The ScoreXTM provides the best study material CBSE class 10 maths chapter 3 which is easy to learn and understand.

What is the format of the course?

In the course of CBSE class 10 math chapter 3, we cover all the main topics. Some are:-

Algebraic methods of solving a pair of linear equations are as follows:-

·         Substitution method - In this method, we can substitute the one value with another value.

·         Elimination method - In this method, we eliminate one of the two variables to obtain an equation in one variable which can be easily solved.

·         Cross - multiplication method - In this method, we have to put the values of a1, a2, b1, b2, c1 and c2. and by solving it, we will get the value of x and y.

Graphical representation of lines

1.         Intersecting lines

2.         Parallel lines

3.         Coincident lines

Our course is specially designed for you. Get the full course now and prepare for the exam!

  1. Q.No 1 - A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

    650

    690

    698

    700

    1/10  Next
  2. Q.No 2 - Look carefully for the pattern, and then choose which pair of numbers comes next 9, 16, 23, 30, 37, 44, 51

    59,66

    58,65

    54, 61

    56,62

    None

  3. Q.No 3 - Find the wrong number in the following series. 1250, 1322 , 1452, 1674, 2024 , 2544

    1250

    1674

    2544

    2024

    None

  4. Q.No 4 - The angle of elevation of the sun, when the length of the shadow of a tree 3 times the height of the tree, is

    30º

    45º

    60º

    90º

    None

  5. Q.No 5 - A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

    12 days

    15 days

    16 days

    18 days

    None

  6. Q.No 6 - 22, 42, 64, 88, ?

    114

    112

    116

    110

    None

  7. Q.No 7 - Look carefully for the pattern, and then choose which pair of numbers comes next 42, 40, 38, 35, 33, 31, 28

    25, 22

    26,23

    26, 24

    26,22

    None

  8. Q.No 8 - Find the wrong number in the following series. 3252 , 3080 , 2958 , 2876 , 2826

    3080

    2876

    2826

    3252

    None

  9. Q.No 9 - Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

    1/3

    1/8

    2/8

    1/16

    None

  10. Q.No 10 - 1, 2, 3, 5, 8, ?

    11

    13

    15

    9

    None of the above

    Prev 10/10