a book seller bought 15 copies of a book. He sold each of them rs 60 and thus made a profit of rs 15 by selling all the books. What was the cost price of a book?
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The cost price of a book was Rs. 59.
Step-by-step explanation:
Total number of book bought by book seller = 15
Selling price of each book = Rs. 60
Total selling price = 15 x 60 = Rs. 900
Profit = Rs. 15
Total cost price = Rs. 900 - 15 = Rs. 885
The cost price of 15 books = Rs. 885
The cost price of 1 book = = Rs. 59
Hence, the cost price of a book was Rs. 59.
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