Ex 3.3 | Pair of Linear Equations in Two Variables | Class 10 CBSE Maths (2025)

Описание: 📘Class 10 Maths | Chapter 3 – Pair of Linear Equations in Two Variables
🎯 Exercise 3.3 | Step-by-Step Solutions (2025)

In this video, we solve Exercise 3.3 from Chapter 3: Pair of Linear Equations in Two Variables of the CBSE Class 10 Maths NCERT textbook. Watch this video for easy, clear, and step-by-step explanations that will help you master the concepts and improve your exam performance.

🧠 Topics Covered:
✔️ Solving pairs of linear equations using substitution method and elimination method.
✔️ Understanding substitution & elimination method.
✔️ Solving and understanding word problems

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Questions with Timestamps :

00:19 - Q1) Solve the following pair of linear equations by the elimination method and the substitution method :
00:37 - (i) x + y = 5 and 2x – 3y = 4
05:44 - (ii) 3x + 4y = 10 and 2x – 2y = 2
10:49 - (iii) 3x – 5y – 4 = 0 and 9x = 2y + 7
17:32 - (iv) x/2 + 2y/3 = -1 and x – y/3 = 3

22:14 - Q2) Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method :
22:38 - (i) If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes ½ if we only add 1 to the denominator. What is the fraction?

26:35 - (ii) Five years ago, Nuri was thrice as old as Sonu. Ten years later, Nuri will be twice as old as Sonu. How old are Nuri and Sonu?

31:13 - (iii) The sum of the digits of a two-digit number is 9. Also, nine times this number is twice the number obtained by reversing the order of the digits. Find the number.

36:23 - (iv) Meena went to a bank to withdraw ₹2000. She asked the cashier to give her ₹50 and ₹100 notes only. Meena got 25 notes in all. Find how many notes of ₹50 and ₹100 she received.

39:29 - (v) A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid ₹27 for a book kept for seven days, while Susy paid ₹21 for the book she kept for five days. Find the fixed charge and the charge for each extra day.

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📚 Perfect for:
✅ CBSE Board Exam Preparation
✅ Class 10 Maths NCERT Chapter 3 Solutions
✅ Students of CBSE, ICSE, and State Boards
✅ Teachers, Parents, and Home Tutors

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👉 Watch Exercise 3.1 Q1 & Q2:
Ex 3.1 - 1) Form the pair of linear equations in the following problems & find solutions graphically :    • Ex 3.1 - 1) Form the pair of linear equati...  

Ex 3.1 - 2) Find out whether the lines intersect at a point, are parallel or are coincident. :    • Ex 3.1 - 2) Find out whether the lines int...  

👉Watch Exercise 3.1 Q3 & Q7:
Ex 3.1 Q3–Q7 | Pair of Linear Equations in Two Variables | Class 10 CBSE Maths (2025) :    • Ex 3.1 Q3–Q7 | Pair of Linear Equations in...  

👉Watch Exercise 3.2:    • Ex 3.2 | Pair of Linear Equations in Two V...  

👉 Watch Chapter 3 Full Playlist:    • Pair of Linear Equations in Two Variables  

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