My Learning Cart
?
Categories
Account

If the price of a book is increased by 20% and then decreased by 20%, what is th

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: If the price of a book is increased by 20% and then decreased by 20%, what is the net change in price?

Options:

  1. 0%
  2. 4%
  3. 5%
  4. 6%

Correct Answer: 4%

Solution: 

Let the original price be Rs. 100. After a 20% increase, price = 120. After a 20% decrease, price = 120 - 24 = 96. Net change = (96 - 100)/100 * 100 = -4%.

If the price of a book is increased by 20% and then decreased by 20%, what is th

Practice Questions

Q1
If the price of a book is increased by 20% and then decreased by 20%, what is the net change in price?
  1. 0%
  2. 4%
  3. 5%
  4. 6%

Questions & Step-by-Step Solutions

If the price of a book is increased by 20% and then decreased by 20%, what is the net change in price?
  • Step 1: Assume the original price of the book is Rs. 100.
  • Step 2: Calculate the price after a 20% increase. 20% of 100 is 20, so the new price is 100 + 20 = Rs. 120.
  • Step 3: Calculate the price after a 20% decrease from Rs. 120. 20% of 120 is 24, so the new price is 120 - 24 = Rs. 96.
  • Step 4: Find the net change in price. The original price was Rs. 100 and the final price is Rs. 96.
  • Step 5: Calculate the change: 96 - 100 = -4.
  • Step 6: To find the percentage change, divide the change by the original price: -4 / 100 = -0.04.
  • Step 7: Convert to percentage by multiplying by 100: -0.04 * 100 = -4%.
  • Percentage Increase and Decrease – Understanding how to calculate the effects of successive percentage changes on a value.
  • Net Change Calculation – Calculating the overall change in value after applying both an increase and a decrease.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks