NCERT Solutions For Class 10 Maths Chapter 3 Exercise 3.2
NCERT Solutions for class 10 maths ex 3.2 Pair of Linear Equations in two variables is discussed here. These NCERT solutions are created by subject matter expert at Careers360 considering the latest syllabus and pattern of CBSE 2023-24. This ex 3.2 class 10 deals with the graphical and algebraic representations of linear equations in two variables and their different type of solutions such as a unique solution, no solutions or infinitely many solutions, using the five methods namely the Graphical method, substitution method, cross Multiplication method, elimination method and determinant method.
NCERT Solutions for Exercise 3.2 Class 10 Maths Chapter 3 - Pair of Linear Equations in two variables These class 10 maths ex 3.2 solutions are designed as per the students demand covering comprehensive, step by step solutions of every problem. Practice these questions and answers to command the concepts, boost confidence and in depth understanding of concepts. Students can find all exercise together using the link provided below.
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Access Exercise 3.2 Class 10 Maths Answers
Pair of Linear Equations in Two Variables Class 10 Chapter 3 Exercise: 3.2
Q1 Form the pair of linear equations in the following problems and find their solutions graphically.
(i) 10 students of Class X took part in a Mathematics quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who took part in the quiz.
Answer:
Let the number of boys is x and the number of girls is y.
Now, According to the question,
Total number of students in the class = 10, i.e.
And
the number of girls is 4 more than the number of boys,i.e.
Different points (x, y) for equation (1)
Different points (x,y) satisfying (2)
Graph,
As we can see from the graph, both lines intersect at the point (7,3). that is x= 7 and y = 3 which means the number of boys in the class is 7 and the number of girls in the class is 3.
Q1 Form the pair of linear equations in the following problems and find their solutions graphically.
(ii) 5 pencils and 7 pens together cost Rs 50, whereas 7 pencils and 5 pens together cost Rs 46. Find the cost of one pencil and that of one pen.
Answer:
Let x be the price of 1 pencil and y be the price of 1 pen,
Now, According to the question
And
Now, the points (x,y), that satisfies the equation (1) are
And, the points(x,y) that satisfies the equation (2) are
The Graph,
As we can see from the Graph, both line intersects at point (3,5) that is, x = 3 and y = 5 which means cost of 1 pencil is 3 and the cost of 1 pen is 5.
Q7 Draw the graphs of the equations and . Determine the coordinates of the vertices of the triangle formed by these lines and the x-axis, and shade the triangular region.
Answer:
Given, two equations,
And
The points (x,y) satisfying (1) are
And The points(x,y) satisfying (2) are,
GRAPH:
As we can see from the graph that both lines intersect at the point (2,3), And the vertices of the Triangle are ( -1,0), (2,3) and (4,0). The area of the triangle is shaded with a green colour.
More About NCERT Solutions for Class 10 Maths Exercise 3.2
The emphasis of NCERT solutions for Class 10 Maths exercise 3.2 was on graphical representations of linear equations in two variables, types of solutions, and associated graphs. Two systems of equations can be parallel at times. They have no solution in such situations. In rare situations, the two systems of equations may coincide, resulting in an infinite number of solutions for the given system. If the two systems of equations overlap, the given system is said to be consistent because it has a unique solution. NCERT solutions for Class 10 Maths exercise 3.2 was on the graphical depiction of the system of equations. NCERT syllabus Exercise 3.2 Class 10 Maths contains all three questions relating to the graphical depiction.Also students can get access of Pair of linear equations in two variables notes to revise all the concepts discussed in this chapter.
Benefits of NCERT Solutions for Class 10 Maths Exercise 3.2
- NCERT solutions for Class 10 Maths exercise 3.2 help us solve and revise all of the problems in these exercises, as well as develop a deeper grasp of the pair of linear equations in two variables.
- If you thoroughly practise the NCERT solution for Class 10th Maths chapter 3 exercise 3.2, which contains all significant questions from the exam point and all questions are revisited, you will be able to acquire higher marks in the test.
- Exercise 3.2 Class 10 Maths, is based on graphical and algebraic representations of two-variable linear equations, types of solutions, and their graphs, all of which are significant concepts in the chapter.
Also see-
NCERT Solutions of Class 10 Subject Wise
Subject Wise NCERT Exemplar Solutions