Q. if the price of a book is first decreased by 25% and then increased by 20%, then the net change in the price will be
✅ Correct Answer: (A)
10
Explanation: Let the original price be Rs. 100.
New final price = 120 % of (75 % of Rs. 100) = Rs. [(120/100) * (75/100) * 100] = Rs. 90.
Decrease = 10%
Explanation by: Ankit Singh
Let the original price be Rs. 100.
New final price = 120 % of (75 % of Rs. 100) = Rs. [(120/100) * (75/100) * 100] = Rs. 90.
Decrease = 10%
New final price = 120 % of (75 % of Rs. 100) = Rs. [(120/100) * (75/100) * 100] = Rs. 90.
Decrease = 10%