Class 8 Mathematics – Chapter 13: Direct and Inverse Proportion (প্ৰত্যক্ষ আৰু ব্যস্ত সমানুপাত) – Exercise 13.1 Solutions
📚 Related Videos & Playlists:
🔹 Introduction to Chapter 13:
👉 [Link]
🔹 Exercise 13.0 / Previous Exercise:
👉 [Leave blank – first exercise]
🔹 Exercise 13.1 (Part-wise if any):
👉 [Links]
🔹 Complete Playlist of Chapter 13 –
👉 [Link]
Welcome to Ospin Academy, students!
I’m Nasir, your mathematics teacher, and in this video, we will solve Exercise 13.1 of Chapter 13 – Direct and Inverse Proportion (প্ৰত্যক্ষ আৰু ব্যস্ত সমানুপাত) from the Class 8 SCERT Mathematics textbook.
This exercise focuses on the concept of proportionality, understanding how quantities increase or decrease together, and identifying whether a situation is in Direct Proportion or Inverse Proportion. I will explain each question step-by-step with clear diagrams, easy methods, and exam-focused reasoning.
Whether you’re in Assamese or English medium, this video will help you build a strong base in proportion and practical applications.
🧠 What’s Covered in This Video:
✔️ Meaning of Proportion
✔️ Concept of Direct Proportion
✔️ Concept of Inverse Proportion
✔️ How to identify proportional relationships
✔️ Tables, ratios, and comparison methods
✔️ Word problems based on proportion
✔️ Full solutions of all Exercise 13.1 questions
📘 Exercise 13.1 – Questions Covered:
All questions of Exercise 13.1 are fully explained with step-by-step solutions using the concepts of Direct and Inverse Proportion.
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⏱ Timestamps
0:00 – Welcome & Introduction
1:00 – Q1 Solutions
37:00 – Q2 Solutions
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📦 Chapter QR Codes
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QR Code 2: M5S3J5
🎉 Let’s master Direct and Inverse Proportion with smart tricks – only on Ospin Academy with your teacher Nasir.
Happy Learning! 📚✨
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