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**Direction To Solve**

**1-**If for a certain quantity of books, the publisher has to pay Rs. 30,600 as printing cost, then what will be amount of royalty to be paid for these books ?

**2-**What is the central angle of the sector corresponding to the expenditure incurred on Royalty?

**3-**The price of the book is marked 20% above the C.P. If the marked price of the book is Rs. 180, then what is the cost of the paper used in a single copy of the book ?

**4-**If 5500 copies are published and the transportation cost on them amounts to Rs. 82500, then what should be the selling price of the book so that the publisher can earn a profit of 25%?

**5-**Royalty on the book is less than the printing cost by ?