If a bookstore owner buys 15 books less for Tk. 900 when the price of each book goes up by Tk. 3, than find the original price of a book.
Created: 7 months ago | Updated: 1 month ago
Job Solution Bangladesh Bank সহকারী পরিচালক(AD) -12.11.2021 গণিত
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900⁄x- 900⁄(x+3)= 15 

Or, (x+15) (x-12)= 0 

So, x=12 

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