Profit, Loss, and Discount - Class 8

Introduction

• Chapter 5: Profit, Loss, and Discount
• Introduction on page number 66
  • Profit, Profit Percentage, Loss, Loss Percentage
  • These formulas will be used in questions

Question 1: Sale of Bedsheets

• Selling price of bedsheet: ₹153
• Profit: 28%
• Find: Cost price for the shopkeeper
  • Formula:
    • When Profit:
      • CP = SP * 100 / (100 + Profit %)
    • When Loss:
      • CP = SP * 100 / (100 - Loss %)

Question 2: Packets Played by Ranjan

• Ranjan bought 250 packets
• 70% packets sold (175 packets)
• Selling price of first 175 packets: ₹11 per packet
• Selling price of remaining packets: ₹10 per packet
  • Cost price: 250 packets * ₹1 = ₹250
  • Total selling price: 175 packets * ₹11 + 75 packets * ₹10
  • Profit: Total selling price - Cost price*

Question 3: Sale of Jeans by Ankit

• Ankit sold 2 jeans
• Profit on first jeans: 10%
• Loss on second jeans: 10%
  • Calculation of Cost Price:
    • SP = CP * (100 + Profit %) / 100
    • SP = CP * (100 - Loss %) / 100
• Calculation of total profit/loss

Question 4: Sale of Sarees by Nidhi

• Nidhi bought 2 sarees
• Loss on first saree: 8%
• Profit on second saree: Not known
  • Calculation of total profit:
    • SP = CP + Profit

Question 5: Sale of Greeting Cards by Ashok

• Sale of 35 greeting cards
• Loss amount: Equivalent to the sale of 5 greeting cards
  • SP = ₹1 per card
  • Calculation of cost price

Question 6: Sale of Mangoes

• Cost price: ₹10 per mango
• Selling price: ₹12 per mango
  • Comparison of cost and selling price
• Calculation of total profit:
  • Profit percentage: (Profit / Cost price) * 100*

Conclusion

• Usage of profit and loss in various questions
• Correct usage of formulas
• Don't forget to like and share if you enjoyed the video!