NCERT Solutions For Class 10 Maths Chapter 3 Exercise 3.4 / NCERT

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NCERT Solutions For Class 10 Maths Chapter 3 Exercise 3.4
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NCERT Solutions for class 10 Maths Chapter 3 Exercise 3.4 pair of linear equations in two variables in Hindi Medium and English Medium in PDF download or View in Video Format or study online for session 2020-21.

NCERT Solutions For Class 10 Maths Chapter 3 Exercise 3.4
Class: 10
Subject: Maths – गणित
Chapter 3: Exercise 3.4
10 Maths Chapter 3 Exercise 3.4 Solutions
NCERT Solutions for class 10 Maths Chapter 3 Exercise 3.4 in English & Hindi medium online to use or download in PDF form free for academic session 2020-21. Download all Exercises of Class 10 Maths Chapter 3 Solutions main page. Download Offline Apps 2020-21 based on latest NCERT Books 2020-2021.

Class 10 Maths Exercise 3.4 Solutions
10th Maths Exercise 3.4 Solutions in English
10th Maths प्रश्नावली 3.4 का हल हिंदी में
Download 10th Maths Exercise 3.4 in PDF
Class 10 Maths Chapter 3 Main Page

Important Questions On Linear Equations

1. Two numbers are in the ration of 5:6. If 8 is subtracted from each of the numbers, they become in the ratio of 4:5. Find the numbers. [Answer: 40, 48]
2. Given the linear equation 2x + 3y – 12 = 0, write another linear equation in these variables, such that. geometrical representation of the pair so formed is (i) Parallel Lines (ii) Coincident Lines. [Answer: (i). 4x+6y+10=0, (ii). 4x+6y-24=0]
3. The ratio between girls and boys in a class of 40 students is 2:3. Five new students joined the class. How many of them must be boys so that the ratio between girls and boys becomes 4:5? [Answer: 1]
4. The difference of two number is 66. If one number is four times the other, find the numbers. [Answer: 88, 22]
5. A sum of money was distributed equally among a certain number of children. If there were 10 children more, each would get a rupee less. But if there were 15 children less, each would get of ₹3 more. Find the sum of money distributed and also the number of children. [Answer: ₹200, 40]

Important Questions With Answers
1. For what value of k, the following system of equations will be inconsistent: kx + 3y = k – 3; 12x + ky = k. [Answer: k=-6]
2. Solve graphically the pair of linear equations 5x – y = 5 and 3x – 2y = – 4 Also find the co-ordinates of the points where these lines intersect y-axis. [Answer: (2, 5), (0, -5) and (0, 2)]
3. A number consists of two digits. When it is divided by the sum of the digits, the quotient is 6 with no remainder. When the number is diminished by 9, the digits are reversed. Find the number. [Answer: 54]
4. For what values of a and b the following pair of linear equations have infinite number of solutions?
2x + 3y = 7; a(x + y) – b(x – y) = 3a + b – 2. [Answer: a=5, b=1]
5. The sum of a two digit number and the number obtained by interchanging the digits is 132