Question

the price of a book is increased by 25/ if the new prise is ₹100 more than the old price find the old price and new price​

Answer 1

Answer:

Let the price of the book is 100%.

First time the price of the book is decreasing by 25%.

When the price of the book decreases by 25%, it remains (100–25)= 75% of original.

New price of book = 75%.

And after that the price of book is increasing by 20%.

when the price of the book increases by 20%, it becomes 120% of original or 75*120/100= 90%