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Class 8 Mathematics – Chapter 8: Comparing Quantities (পৰিমানৰ তুলনা) – Exercise 8.2 (Discount & Successive Discount)

Welcome to Ospin Academy, students!

I’m Nasir, your mathematics teacher, and in this video, we will solve Exercise 8.2 of Chapter 8 – Comparing Quantities (পৰিমানৰ তুলনা) from the Class 8 SCERT Mathematics textbook.

This exercise focuses on discount, successive discounts, and combined concepts of profit & loss with discount. I will explain every question step-by-step using simple formulas, real-life examples, and shortcuts so that you never get confused in exams.

Whether you're studying in Assamese or English medium, this video will help you master the concepts of discounts and how to calculate them quickly.

🧠 What’s Covered in This Video:

✔️ Concept of Discount & Successive Discount
✔️ Formula for Discount %, Selling Price, Marked Price
✔️ Relation between Discount and Profit/Loss
✔️ Real-life examples for better understanding
✔️ Full solution of all Exercise 8.2 questions
✔️ Easy methods and shortcuts for quick calculations

📘 Exercise 8.2 – Questions Covered:

Exercise 8.2

1. The marked price of a radio is ₹2055. If it is sold at a 3% discount, find the selling price.

2. Suman bought a Mathematics Book for ₹190 at a discount of 10%. What was the marked price?

3. Ramen bought an article for ₹630 whose marked price was ₹700. What is the percentage of discount he got?

4. The marked price of a sofa set is ₹30,000. On the occasion of the new year, the shopkeeper sold it for ₹25,000. What is the percentage of discount?

5. After a discount of 10%, a fan is sold for ₹1260. What was the marked price of the fan?

6. The marked price of a watch is ₹1150. On account of Puja, if it is to be sold for ₹1000, then what will be the rate of discount?

7. A cloth seller advertises a discount of 10% and sells his clothes accordingly. A customer buys a pair of suits for ₹6050, a shirt for ₹575, and a saree for ₹875. Calculate the total discount she got.

8. What is the rate of retail discount on a book priced at ₹200 and sold for ₹175?

9. Buying a table for ₹2750 from a furnisher shop, a customer gets a discount of \( \frac{8}{3}\% \). What was the price of the table fixed by the shopkeeper?

10. A shopkeeper gave a discount of 30% on a shirt with a marked price of ₹600. He further gave a discount of 20% on that shirt. At what price did the shopkeeper sell the shirt, and what is the total percentage of discount?

11. Kamal bought a car for ₹4,00,000 and spent ₹10,000 on repairs. He sold the car to Suresh at a 10% profit, and Suresh sold it to Deepak at a 5% profit. At what price did Deepak buy the car?

12. A shopkeeper bought a radio from a man for ₹800. He spent ₹200 on repairs and sold it to another person for ₹1300. What was his percentage of profit?

13. Migam bought an iron for ₹1200. He spent ₹40 on transportation. At what price should he sell it to get a profit of 25%?

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⏱ Timestamps

0:00 – Welcome & Introduction
1:00 – Concept of Discount & Successive Discount
2:40 – Formula Explanation
4:00 – Q1 Solution
5:10 – Q2 Solution
6:20 – Q3 Solution
7:10 – Q4 Solution
8:20 – Q5 Solution
9:10 – Q6 Solution
10:10 – Q7 Solution
11:20 – Q8 Solution
12:10 – Q9 Solution
13:20 – Q10 Solution
24:40 – Q11 Solution
35:40 – Q12 Solution
56:20 – Q13 Solution

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🔖 Tags

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SCERT Assam QR Code P8L2D4, K7Q9R6

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📦 Chapter QR Codes

QR Code 1: P8L2D4
QR Code 2: K7Q9R6

🎉 Let’s master Discount and Profit tricks with smart examples – only on Ospin Academy with your teacher Nasir.
Happy Learning! 📚