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By increasing the list price of a book by Rs.10 a person can buy 10 books less for Rs 1200 . Find the original list price of the book.

Let the list price of the book be Rs x.

Number of books purchased =

When the price of books is increased by Rs 10.

Number of books purchased =

According to the given condition,

Thus, the list price of the book is Rs 30.



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