Class 8 Maths Exercise 8.1 | Question 1 to 9 Solutions In English | Chapter 8 | SCERT Assam

Class 8 Mathematics – Chapter 8: Comparing Quantities (পৰিমানৰ তুলনা) – Exercise 8.1 (Profit and Loss)

Welcome to Ospin Academy, students!

I’m Nasir, your mathematics teacher, and in this video, we will solve Exercise 8.1 of Chapter 8 – Comparing Quantities (পৰিমানৰ তুলনা) from the Class 8 SCERT Mathematics textbook.

This exercise is focused on Profit and Loss — how to calculate profit or loss amount and percentage using simple and clear methods. I will explain each question step-by-step using easy-to-understand formulas and shortcuts.

Whether you're studying in Assamese or English medium, this video will help you build a strong foundation in profit and loss concepts.

🧠 What’s Covered in This Video:

✔️ Concept of Profit and Loss
✔️ Formula for Profit %, Loss %, SP, CP
✔️ Real-life examples for better understanding
✔️ Full solution of all Exercise 8.1 questions
✔️ Easy methods and shortcuts for calculations

📘 Exercise 8.1 – Questions Covered:

Q1. A watch was bought for ₹ 250 and sold for ₹ 260. Find the profit and profit percent.
Q2. Buying a pen at ₹ 60, at what price should it be sold to get a profit of 15%?
Q3. Ramen sold a mobile for ₹ 13,500 at a loss of 20%. Find the cost price.
Q4. If the SP of 10 pens = CP of 8 pens, calculate the gain or loss percent.
Q5. A cycle bought for ₹ 5,000 is sold at a profit of 12%. Find the SP.
Q6. Kamal bought a water filter for ₹ 4500 and sold it for ₹ 4230. Calculate the loss percent.
Q7. A shopkeeper sold a watch for ₹ 785 at a loss of 5%. What is the cost price?
Q8. If SP of 10 items = CP of 11 items, find the profit or loss percent.
Q9. A man bought two cars for ₹ 99,000 each. Sold one at 10% profit and other at 10% loss. Find net profit or loss % in the transaction.

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⏱ Timestamps

0:00 – Welcome & Introduction
1:00 – Concept of Profit and Loss
2:30 – Formula Explanation
4:00 – Q1 Solution
5:30 – Q2 Solution
7:10 – Q3 Solution
8:45 – Q4 Solution
10:30 – Q5 Solution
12:00 – Q6 Solution
13:20 – Q7 Solution
14:40 – Q8 Solution
16:10 – Q9 Solution
17:45 – Summary and Tricks

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🔖 Tags

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SCERT Assam QR Code C5F8H6, J6I8P9

🏷 Hashtags

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📦 Chapter QR Codes

QR Code 1: C5F8H6
QR Code 2: J6I8P9

🎉 Let’s master Profit and Loss with real-life logic and smart tricks – only on Ospin Academy with your teacher Nasir.
Happy Learning! 📚