CBSE Class 10 Maths Chapter 5 – Arithmetic Progressions (2026–27)
Master Chapter 5 – Arithmetic Progressions with comprehensive study notes, NCERT solutions, exercise-wise solutions, MCQs, important questions, PDF downloads, and video lessons based on the latest CBSE Class 10 Mathematics (2026–27) syllabus. Learn how to identify arithmetic progressions, find the nth term, calculate the sum of terms, and solve real-life problems with confidence.

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Chapter Summary
Arithmetic Progressions (AP) introduces students to number sequences in which the difference between consecutive terms remains constant. In this chapter, students learn to identify arithmetic progressions, determine the first term and common difference, find the nth term, and calculate the sum of the first n terms using standard formulas. The chapter also includes application-based problems that demonstrate how arithmetic progressions are used in everyday situations.
This chapter develops logical reasoning and pattern recognition skills while strengthening students’ understanding of sequences and series. Regular practice of NCERT exercises, solved examples, MCQs, and previous year questions will help students build confidence and perform well in the CBSE board examination.
Learning Outcomes
After completing this chapter, students will be able to:
- ✅ Identify an arithmetic progression.
- ✅ Find the common difference of an AP.
- ✅ Determine the nth term of an arithmetic progression.
- ✅ Calculate the sum of the first n terms of an AP.
- ✅ Solve application-based problems involving arithmetic progressions.
- ✅ Apply AP formulas accurately in numerical problems.
- ✅ Improve logical and analytical thinking.
- ✅ Prepare confidently for the CBSE board examination.
Key Topics
- 📘 Introduction to Arithmetic Progressions
- 🔢 First Term and Common Difference
- 📏 nth Term of an AP
- ➕ Sum of the First n Terms
- 🌍 Applications of Arithmetic Progressions
- 📝 NCERT Exercise Practice
- 🎯 CBSE Board Exam Questions
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📄 Study Notes
Comprehensive notes with explanations, solved examples, and important concepts.
🧠 Mind Map
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Formula Sheet
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📘 NCERT Solutions
Step-by-step solutions for every NCERT textbook exercise with clear explanations.
📘 Exemplar Solutions
Detailed solutions for NCERT Exemplar questions to strengthen higher-order thinking.
📑 Important Questions
Most expected board exam questions with detailed solutions and explanations.
❓ MCQs
Chapter-wise multiple-choice questions for concept reinforcement and quick revision.
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📄 PDF Notes
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Exercise Solutions
📘 Exercise 5.1 – Introduction to Arithmetic Progressions
Exercise 5.1 introduces the concept of an Arithmetic Progression (AP). Students learn how to identify whether a sequence is an AP, find the first term and common difference, and solve basic problems based on arithmetic sequences.
📘 Exercise 5.2 – Finding the nth Term of an AP
Exercise 5.2 focuses on finding the nth term of an arithmetic progression using the standard formula. Students practice determining any term in a sequence, solving missing-term problems, and applying AP concepts to numerical questions.
📘 Exercise 5.3 – Sum of the First n Terms of an AP
Exercise 5.3 teaches students how to calculate the sum of the first n terms of an arithmetic progression using the standard AP sum formula. The exercise includes numerical and application-based problems that strengthen problem-solving skills and prepare students for CBSE board examinations.
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❓ Frequently Asked Questions
1. What is an Arithmetic Progression (AP)?
An Arithmetic Progression (AP) is a sequence of numbers in which the difference between consecutive terms remains constant. This fixed value is called the common difference.
2. How many exercises are there in Chapter 5?
According to the latest CBSE Class 10 Mathematics (2026–27) textbook, Chapter 5 contains three exercises: Exercise 5.1, Exercise 5.2, and Exercise 5.3.
3. What is the common difference in an Arithmetic Progression?
The common difference (d) is the difference between two consecutive terms of an AP. It is calculated as:
d = Second Term − First Term
4. Are these notes based on the latest CBSE syllabus?
Yes. All study notes, solutions, and learning resources are prepared according to the latest CBSE Class 10 Mathematics (2026–27) syllabus.
5. Are NCERT exercise solutions available?
Yes. Step-by-step solutions for Exercise 2.1 and Exercise 2.2 are available with detailed explanations.
6. Can I download the Chapter 4 notes as a PDF?
Yes. Free PDF notes and other downloadable study resources are available on this page.
7. Are MCQs and important questions included?
Yes. This chapter includes chapter-wise MCQs, important questions, and additional practice material for exam preparation.
8. Why is Chapter 5 important for the CBSE board examination?
Chapter 5 is an important scoring chapter in Class 10 Mathematics. Questions based on the nth term, sum of an AP, and application-based problems are frequently asked in the CBSE board examination, making regular practice essential for achieving high marks.
9. Are video lessons available for this chapter?
Yes. Video lessons are provided to help students understand each concept with clear explanations and solved examples.
10. Who can use these study resources?
These resources are suitable for CBSE Class 10 students, teachers, and parents looking for reliable notes, NCERT solutions, MCQs, PDFs, and revision material.
11. How do I find the nth term of an Arithmetic Progression?
The nth term of an AP is found using the formula:
aₙ = a + (n − 1)d
where:
- a = first term
- d = common difference
- n = term number
12. What is the formula for the sum of the first n terms of an AP?
The sum of the first n terms of an AP is calculated using:
Sₙ = n/2 [2a + (n − 1)d]
or
Sₙ = n/2 (First Term + Last Term)
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